d637564a117947bd0493eba9bf61a1d84f893aa5 lianad: in update_spend_tx() work on the db_psbt instead of the imported one (pythcoiner)
Pull request description:
This PR partially fixes#1581.
Previously the imported PSBT we taken as base and signature added from the PSBT stored in DB, this create issue when the imported PSBT is supplied by a signing device that trim the PSBT (in QRCode context for instance).
This PR change the logic by taking the PSBT stored in DB as base and add signatures from the imported PSBT.
~~Note: the same logic change must be done on `liana-backend`~~
edit: review the logic on liana-backend, nothing seems to be change on this side, validated by a test by importing a psbt from krux trough Krux(QRCode) => SeedQReader => file => import
ACKs for top commit:
edouardparis:
ACK d637564a117947bd0493eba9bf61a1d84f893aa5
Tree-SHA512: 2a14f2387f3ab74e93f4e5b67ff48011bea945bfa897e21f14be40bf40b52460c921c4dcb92899ce46f1aed6096ec8bd97b423341c1660dd3cd081146080572c
733c3a6071