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 10 2018-11-21T00:22:24  <TGeek> Hi all, I am having an issue in bitcoin core 0.17.0.1 with the bumpfee rpc call.. It keeps throwing an error "(-4) Transaction does not have a change output". Which is strange because the output for the tx has two outputs, one for the to address and one for change. I have been troubleshooting this issue for 2 days now and cannot seem to find anything related in searches.. Any help would be greatly appreciated.
 11 2018-11-21T00:23:46  <sipa> how was the transaction created?
 12 2018-11-21T00:24:41  <TGeek> via createrawtransaction and set as replaceable
 13 2018-11-21T00:25:24  <sipa> how did you create the change?
 14 2018-11-21T00:25:28  <sipa> *the change address
 15 2018-11-21T00:26:14  <TGeek> tried both getnewaddress and getrawchangeaddress.. both do not work
 16 2018-11-21T00:26:34  <sipa> i think you should open an issue
 17 2018-11-21T00:26:57  <gmaxwell> does the fee bumper give correct errors on all the other cases it can't handle?
 18 2018-11-21T00:27:00  <TGeek> also tried using a specific static address with a UTXO's
 19 2018-11-21T00:27:46  <sipa> i would expect getrawchangeaddress to work
 20 2018-11-21T00:28:19  <sipa> but maybe the change information is held as metadata in the wallet, which means it won't work with anything but sendtoaddress/sendmany
 21 2018-11-21T00:29:39  <TGeek> hmm.. but getrawchangeaddress says in the docs that it is only for using with RAW transactions "NOT normal use"
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 23 2018-11-21T00:30:38  <sipa> TGeek: yes, i mean that it's possible that bumpfee only works on transaction created through sendtoaddress/sendmany, and not through any of the rawtransaction RPCs
 24 2018-11-21T00:31:20  <sipa> in any case, if so, that should be improved upon
 25 2018-11-21T00:31:29  <sipa> so perhaps best to open an issue so more people can chime in
 26 2018-11-21T00:32:07  <TGeek> ok, will do.. thanks for your time, have a good one
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 28 2018-11-21T00:41:06  <bitcoin-git> [bitcoin] MarcoFalke opened pull request #14772: refactor: Convert comments to thread safety annotations (master...Mf1802-csCommentsLock) https://github.com/bitcoin/bitcoin/pull/14772
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 69 2018-11-21T04:16:38  <bitcoin-git> [bitcoin] kallewoof opened pull request #14774: interface/wallet: get rid of missing initializer warnings (master...suppwarn-empty-constructor) https://github.com/bitcoin/bitcoin/pull/14774
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 80 2018-11-21T05:10:27  <bitcoin-git> [bitcoin] dooglus opened pull request #14775: 'break' should be 'continue' here? (master...patch-6) https://github.com/bitcoin/bitcoin/pull/14775
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 97 2018-11-21T06:57:58  <bitcoin-git> [bitcoin] jameshilliard opened pull request #14776: Add process based prctl spectre mitigation controls. (master...spectre-prctl) https://github.com/bitcoin/bitcoin/pull/14776
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110 2018-11-21T08:40:00  <wumpus> what's up with appveyor? looks like it's failing on every PR
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119 2018-11-21T09:34:15  <bitcoin-git> [bitcoin] laanwj pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/6b90a2a0e065...267793af8b03
120 2018-11-21T09:34:15  <bitcoin-git> bitcoin/master 6be7d14 Carl Dong: Properly generate salt in rpcauth.py, update tests...
121 2018-11-21T09:34:15  <bitcoin-git> bitcoin/master 267793a Wladimir J. van der Laan: Merge #14742: Properly generate salt in rpcauth.py...
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124 2018-11-21T09:35:13  <bitcoin-git> [bitcoin] laanwj closed pull request #14742: Properly generate salt in rpcauth.py (master...2018-11-fix-rpcauth-salt) https://github.com/bitcoin/bitcoin/pull/14742
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128 2018-11-21T09:43:14  <promag> wumpus: test added to #14670
129 2018-11-21T09:43:29  <gribble> https://github.com/bitcoin/bitcoin/issues/14670 | http: Fix HTTP server shutdown by promag · Pull Request #14670 · bitcoin/bitcoin · GitHub
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149 2018-11-21T10:59:53  <bitcoin-git> [bitcoin] domob1812 opened pull request #14777: tests: Add regtest for JSON-RPC batch calls (master...batch-rpc) https://github.com/bitcoin/bitcoin/pull/14777
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153 2018-11-21T11:10:41  <promag> no travis job for #14777? :/
154 2018-11-21T11:10:43  <gribble> https://github.com/bitcoin/bitcoin/issues/14777 | tests: Add regtest for JSON-RPC batch calls by domob1812 · Pull Request #14777 · bitcoin/bitcoin · GitHub
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188 2018-11-21T13:07:09  <dawud> Hello anybody around?
189 2018-11-21T13:08:31  <dawud> I have a question about generating keys. I've used bitaddress.org to generate a key pair. It works pretty simply, so I'm pretty confused what could have gone wrong.
190 2018-11-21T13:08:57  <wumpus> ask general question in #bitcoin please
191 2018-11-21T13:09:20  <dawud> This is about R values and the algorithm used to generate private keys.
192 2018-11-21T13:09:42  <dawud> When I generated the key, I took photos and wrote down the 'brain wallet passphrase'. So, I know the phrase is "correct". However, now, when I type the same passphrase, it generates a DIFFERENT private key.
193 2018-11-21T13:10:11  <dawud> So, I'm wondering, in core, when generating keys, is there a way that somehow a different R value or something like that could happen, if it was done, say, in an old version of core?
194 2018-11-21T13:10:16  <phantomcircuit> dawud, still this channel is about bitcoin core development
195 2018-11-21T13:10:20  <phantomcircuit> which this is definitely not
196 2018-11-21T13:11:13  <dawud> I asked there.
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199 2018-11-21T13:14:37  <wumpus> please, don't insist. you could also try the bitcoin stack exchange (https://bitcoin.stackexchange.com/) if #bitcoin yields nothing
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206 2018-11-21T13:41:48  <bitcoin-git> [bitcoin] laanwj pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/267793af8b03...16498860546e
207 2018-11-21T13:41:48  <bitcoin-git> bitcoin/master fa7da06 MarcoFalke: qa: Check specific reject reasons in feature_block
208 2018-11-21T13:41:49  <bitcoin-git> bitcoin/master 1649886 Wladimir J. van der Laan: Merge #14719: qa: Check specific reject reasons in feature_block...
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212 2018-11-21T13:42:58  <bitcoin-git> [bitcoin] laanwj closed pull request #14719: qa: Check specific reject reasons in feature_block (master...Mf1811-qaRejectBlock) https://github.com/bitcoin/bitcoin/pull/14719
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253 2018-11-21T16:55:47  <stevenroose> Does bitcoind remove the cookie file when closing?
254 2018-11-21T16:56:33  <stevenroose> Hmm seems so, didn't know.
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258 2018-11-21T17:11:47  <stevenroose> Is core supposed to make the .cookie file in datadir/.cookie or datadit/chain/.cookie?
259 2018-11-21T17:11:54  <stevenroose> With chain = chainname
260 2018-11-21T17:12:08  <stevenroose> I'm reading this: https://github.com/bitcoin/bitcoin/blob/master/test/functional/test_framework/util.py#L329
261 2018-11-21T17:12:10  <stevenroose> But I seem to find the cookie file in the main datadir.
262 2018-11-21T17:12:25  <sipa> stevenroose: inside the chain specific datadir
263 2018-11-21T17:12:45  <sipa> if you configure the datadir yourself, that's the one that will be used
264 2018-11-21T17:13:08  <sipa> otherwise a default is used that depends on the chain
265 2018-11-21T17:16:48  <stevenroose> sipa: oh wait, so if you set -datadir yourself, it should be top-level?
266 2018-11-21T17:17:10  <stevenroose> but then that like in test_framework doesn't make sense, right? test_framework always sets the -datadir and still it points at datadir/regtest/.cookie?
267 2018-11-21T17:17:18  <stevenroose> s/that like/that line/
268 2018-11-21T17:21:04  <stevenroose> sipa: it seems to always add the network-specific part, no?
269 2018-11-21T17:21:18  <stevenroose> https://github.com/bitcoin/bitcoin/blob/master/src/util/system.cpp#L786
270 2018-11-21T17:25:38  <stevenroose> ah, networkspecific part for mainnet is "" :|
271 2018-11-21T17:25:40  <stevenroose> k thanks
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275 2018-11-21T17:34:17  <wumpus> even if you configure datadir yourself, it should use the network-specific subdir
276 2018-11-21T17:34:36  <wumpus> for mainnet that's top-level
277 2018-11-21T17:35:57  <wumpus> test chains (testnet3, regtest) have subdirectories
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295 2018-11-21T18:32:27  <dgpv> script output descriptors multi() expression supports only fixed order of keys, in the order they listed
296 2018-11-21T18:32:55  <dgpv> but some wallets (copay, for example) uses an approach where pubkeys are sorted by their hex values for each address
297 2018-11-21T18:33:26  <dgpv> to create an address at index 123, you get all pubkeys for index 123, sort the pubkeys, and then make a multisig address with them
298 2018-11-21T18:33:49  <gmaxwell> ugh, that prevents you from putting the most likely to sign first, so they take longer to validate.
299 2018-11-21T18:33:57  <dgpv> this way there's no need to know the order of the keys in a keyring
300 2018-11-21T18:34:48  <gmaxwell> dgpv: they could have as well defined it by sorting the master keys.
301 2018-11-21T18:35:00  <dgpv> you only need to know the xpubs of participants, but not the order of how they joined the multisig scheme
302 2018-11-21T18:35:17  <dgpv> they could not, because they do not know the order beforehand
303 2018-11-21T18:35:29  <dgpv> some user creates multisig wallets and sends invitations to others
304 2018-11-21T18:35:35  <dgpv> they may join in arbitrary order
305 2018-11-21T18:35:46  <dgpv> *creates multisig wallet*, not wallets
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307 2018-11-21T18:36:58  <dgpv> they also do not know who will likely to sign more often
308 2018-11-21T18:37:24  <gmaxwell> dgpv: I am not following your statement.  If the keys on an output come from xpubs a, b, c  then they could be put in xpub sorted order.
309 2018-11-21T18:37:50  <gmaxwell> dgpv: the user almost certantly does, even if the application doesn't provide a way for the user to tell them. :)
310 2018-11-21T18:38:03  <sipa> dgpv: i don't think it's unreasonable to extend descriptors with a sorted-multi construction
311 2018-11-21T18:38:30  <dgpv> my point is that this scheme exists, and is used for a long time by at least one wallet
312 2018-11-21T18:38:34  *** bitcoin-git has joined #bitcoin-core-dev
313 2018-11-21T18:38:35  <bitcoin-git> [bitcoin] laanwj pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/16498860546e...d7b0258ff037
314 2018-11-21T18:38:36  <bitcoin-git> bitcoin/master 3fb09b9 Akio Nakamura: Warn unrecognized sections in the config file...
315 2018-11-21T18:38:36  <bitcoin-git> bitcoin/master d7b0258 Wladimir J. van der Laan: Merge #14708: Warn unrecognised sections in the config file...
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318 2018-11-21T18:39:08  <dgpv> we also do not use this scheme as a default, but support it as an artifact of previous integration with copay/bws
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320 2018-11-21T18:39:40  <bitcoin-git> [bitcoin] laanwj closed pull request #14708: Warn unrecognised sections in the config file (master...warn_unrecognized_section) https://github.com/bitcoin/bitcoin/pull/14708
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322 2018-11-21T18:39:46  <sipa> dgpv: so far, the bitcoin core wallet also hasn't really supported HD chains created by other software as import
323 2018-11-21T18:40:01  <sipa> and it still doesn't, but with descriptors that'll hopefully become easier
324 2018-11-21T18:40:38  <dgpv> one of the use for descriptors is interoperability, as I understand
325 2018-11-21T18:40:48  <sipa> not really
326 2018-11-21T18:40:56  <sipa> it's more about flexibility
327 2018-11-21T18:41:13  <sipa> interoperability may be a nice side effect
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330 2018-11-21T18:41:34  <sipa> but i don't expect other wallets to support descriptors too, or at least not in a guaranteed to be compatible way
331 2018-11-21T18:41:48  <sipa> they're just a generic way for representing something more flexible and readable than what we had before in core
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333 2018-11-21T18:42:22  <dgpv> it would be useful way to create interoperable backups
334 2018-11-21T18:42:40  <sipa> meh :)
335 2018-11-21T18:42:53  <sipa> different software hardly agrees on what a wallet is
336 2018-11-21T18:43:02  <gmaxwell> Generally interoperablity between wallets in a broad sense is misguided... the interoperability depends critically on the functionality, and we can't expect all wallets to have the same functionality.
337 2018-11-21T18:43:24  <dgpv> we support a lot address configurations, and could create script descriptors that can be imported into core, or import descriptors from core
338 2018-11-21T18:43:35  <sipa> sure, but will you keep up?
339 2018-11-21T18:43:51  <sipa> i don't intend to make descriptors a "standard" - more something that we can easily extend
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341 2018-11-21T18:44:43  <sipa> i think it's important to provide flexibility, so that power users can build interesting constructions on top - which may include interoperability between wallets
342 2018-11-21T18:44:57  <luke-jr> dgpv: last year, quite a few wallet software teams met to discuss issues like interoperability, but concluded it wasn't practical
343 2018-11-21T18:45:15  <sipa> but interoperability as a supported feature is very hard, as it essentially requires the developer teams to coordinate rollouts of new features etc
344 2018-11-21T18:46:11  <gmaxwell> luke-jr: They're interoperable in the sense that you can send funds from one wallet to another. :P
345 2018-11-21T18:46:20  <luke-jr> gmaxwell: well, yeah, but .. context :P
346 2018-11-21T18:46:23  <sipa> in any case, i have no objection to extending descriptors with a sorted-pubkey-multisig construction if that's useful, but it's not personally a priority to me
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348 2018-11-21T18:47:50  <luke-jr> I guess note that for literal export/import, one could treat any wallet as JBOK
349 2018-11-21T18:48:59  <promag> should we allow reindex=1 in conf file?
350 2018-11-21T18:49:30  <gmaxwell> it's almost always a mistake, but I thought we discussed doing something about that before...
351 2018-11-21T18:49:38  <promag> or maybe warn?
352 2018-11-21T18:49:38  <luke-jr> promag: I don't think it would be reasonable to forbid it
353 2018-11-21T18:49:57  <gmaxwell> I guess one downside of refusing it, is that if someone has a startup script where the only way to pass options to the process is the config file...
354 2018-11-21T18:50:00  <promag> is there a use case for that? I can't see one
355 2018-11-21T18:50:03  <dgpv> only popular wallet with exotic scripts that I know is greenaddress, others use standard scripts and maybe different derivation paths..
356 2018-11-21T18:50:08  <sipa> promag: there are people for whom editing the config file is easier than passing a cmdline argument, i think
357 2018-11-21T18:50:30  <luke-jr> conf file shouldn't deviate from command line parsing too much
358 2018-11-21T18:50:51  <luke-jr> being stricter with unknown command line options makes sense, but anything more seems like a bad idea
359 2018-11-21T18:51:04  <sipa> agree
360 2018-11-21T18:51:06  <gmaxwell> dgpv: use of the particular script is only 1% of what it takes to make things compatible.
361 2018-11-21T18:51:19  <dgpv> what else? derivation paths ?
362 2018-11-21T18:51:22  <promag> so not even warn?
363 2018-11-21T18:51:47  <rafalcpp> maybe warn, or someone will be stuck always reindexing?
364 2018-11-21T18:51:56  <luke-jr> rafalcpp: I think anyone would notice fairly quickly
365 2018-11-21T18:51:57  <dgpv> if you allow to specify arbitrary derivation paths with templates, you can support any scheme
366 2018-11-21T18:52:12  <gmaxwell> dgpv: Seriously, the bitcoin project has been held back for years by misguided efforts towards interoperability with a largely indifferent industry.  It's a bit irritating that you're advocating us burning more time here on this particular point of it, because it would be useful in your product.
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368 2018-11-21T18:52:38  <rafalcpp> luke-jr: if some RPC for getting general "state" of node could include misc warninings, it could remind there
369 2018-11-21T18:53:14  <sipa> gmaxwell: no need for that
370 2018-11-21T18:53:22  <sipa> i'm sure dgpv is just earnestly trying to understand the issue
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372 2018-11-21T18:53:55  <luke-jr> rafalcpp: "hmm, every time i restart my node it takes days to work again" is a stronger warning than anything we can do
373 2018-11-21T18:54:49  <dgpv> actually this is new info for me, about the fact that interoperability is not important
374 2018-11-21T18:55:20  <sipa> dgpv: of course interoperability is important, but it comes at a high cost
375 2018-11-21T18:55:36  <sipa> and i think the space, and the concept of what wallets are and try to be is just evolving too fast to focus on it
376 2018-11-21T18:55:56  <promag> luke-jr: +1
377 2018-11-21T18:56:04  <promag> thanks for the feedback
378 2018-11-21T18:56:28  <sipa> dgpv: for example, how to deal with change, or backups, or multiple wallets, or hardware devices, ...
379 2018-11-21T18:56:41  <sipa> are all ways in which wallets can differ in ways that make them hard to interoperate
380 2018-11-21T18:57:04  <luke-jr> coming soon: or Lightning channels
381 2018-11-21T18:57:19  <sipa> some software insists that 'the blockchain is your wallet' and everything except a seed can be recovered from the chain
382 2018-11-21T18:57:34  <luke-jr> x.x
383 2018-11-21T18:57:42  <sipa> luke-jr: exactly
384 2018-11-21T18:57:52  <rafalcpp> luke-jr: what about a server, it will just have 80% of uptime for bitcoind unstead of 99% for unclear reason. Wouldnt't RPC getblockchaininfo -> "warnings" field make sense? Maybe not, but we could make it a place admins know to look at first when troubleshooting. "doing-reindex". Maybe later also "no-peers", and some other. Just idea
385 2018-11-21T18:58:52  <sipa> dgpv: when you include multiparty or multidevice things, you complicate things further, even beyond just the script involved (for example, how do the different parties interact to construct a transaction)
386 2018-11-21T19:00:28  <dgpv> sipa: but IMO the most important part is how to specify where to find your UTXO - how to generate the addresses
387 2018-11-21T19:00:53  <sipa> dgpv: even that differs between wallets
388 2018-11-21T19:00:59  <dgpv> sipa: the most important for interoperability - you can have your money even if you have a backup from now-unsupported wallet
389 2018-11-21T19:01:24  <sipa> dgpv: emergency recovery is a whole lot easier to support than full interoperability though
390 2018-11-21T19:01:38  <dgpv> sipa: but what differs is scripts, derivation paths, and maybe pubkey order
391 2018-11-21T19:02:24  <sipa> i'm not sure what you're arguing for now
392 2018-11-21T19:02:49  <sipa> all i'm saying is that i don't think it makes sense to commit to "bitcoin core aims to be interoperable with software X"
393 2018-11-21T19:03:36  <sipa> if descriptors are flexible enough to support emergency recovery from wallets created by software X, great, use it
394 2018-11-21T19:04:14  <dgpv> sipa: actually my initial question was should I submit a PR with change for sortedmulti() or just create an issue on bitcoin core github
395 2018-11-21T19:04:30  <dgpv> sipa: got a suggestion to ask here first
396 2018-11-21T19:04:30  <sipa> up to you
397 2018-11-21T19:05:04  <dgpv> sipa: I got my answer, so thank you for the time you expended answering me
398 2018-11-21T19:05:35  <luke-jr> dgpv: I think the existing sorted multi PR should get merged first
399 2018-11-21T19:05:51  <dgpv> it is there ?
400 2018-11-21T19:05:59  <luke-jr> not for HD, just in general
401 2018-11-21T19:06:28  <sipa> there's also a bip for it i think
402 2018-11-21T19:06:33  <luke-jr> #8751
403 2018-11-21T19:06:35  <gribble> https://github.com/bitcoin/bitcoin/issues/8751 | RPC: Add parameter to addmultisigaddress / createmultisig to sort public keys by afk11 · Pull Request #8751 · bitcoin/bitcoin · GitHub
404 2018-11-21T19:07:02  <luke-jr> looks like it needs someone to rebase it
405 2018-11-21T19:07:18  <luke-jr> actually, I probably already did
406 2018-11-21T19:08:02  <luke-jr> dgpv: here, you can submit this if you want: https://github.com/luke-jr/bitcoin/pull/new/sort-multisigs-0.17
407 2018-11-21T19:08:19  <luke-jr> although I don't know if it needs *more* rebasing..
408 2018-11-21T19:08:39  <luke-jr> probably
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410 2018-11-21T19:16:09  <dgpv> luke-jr: that PR is about adding a single multisig address, and that can be sorted on client, so I don't think it would be useful
411 2018-11-21T19:16:30  <dgpv> luke-jr: sorting is useful if you are creating many addresses from xpubs
412 2018-11-21T19:18:26  <dgpv> luke-jr: ah, sorry, i'm mistaken
413 2018-11-21T19:18:55  <sipa> dgpv: well is all of this useful at all before we even support importing descriptors?
414 2018-11-21T19:19:13  <sipa> right now, for multisig, the only thing we can do is import individual things
415 2018-11-21T19:19:34  <luke-jr> dgpv: what you're talking about is just a repeated form of that
416 2018-11-21T19:21:12  <dgpv> actually, I'm not mistaken - createmultisig takes only pubkeys, not xpubs
417 2018-11-21T19:24:18  <dgpv> sipa: I see. so maybe sometime in the future, if core supports importing xpubs to create a sequence of multisig addresses from it
418 2018-11-21T19:24:31  <dgpv> sipa: then sortetmulti may become relevant
419 2018-11-21T19:24:51  <dgpv> sipa: until then, no need.
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480 2018-11-21T23:56:18  <bitcoin-git> [bitcoin] jnewbery opened pull request #14778: A few minor formatting fixes and clarifications to descriptors.md (master...descriptors_doc_update) https://github.com/bitcoin/bitcoin/pull/14778
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