signpsbt do not allow to sign an utxo already spent in an unconfirmed transaction

JoinMarket-Org / joinmarket-clientserver

Bitcoin CoinJoin implementation with incentive structure to convince people to take part

GNU General Public License v3.0

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signpsbt do not allow to sign an utxo already spent in an unconfirmed transaction #1679

Open divoc91ab opened 4 months ago

divoc91ab commented 4 months ago

wallet-tool.py signpsbt do not allow the signing of a transaction spending an utxo spent in another unconfirmed transaction.

The psbt is correctly parsed but The PSBT is not yet fully signed, we signed: 0 inputs. is the result of the script.

Version 0.9.11 (It is the first issue that I open, so if it is missing any detail let me know)

kristapsk commented 3 months ago

According to code, signing PSBT that double spends wallet input in a new transaction that conflicts with another unconfirmed transaction from mempool should work ("utxos that we've stopped tracking"). Probably there is some bug or edge case.

https://github.com/JoinMarket-Org/joinmarket-clientserver/blob/5bfa08c6f558458c9a93e8095ce9dc1b62412838/src/jmclient/wallet.py#L1559-L1577