9b85ce7b03
This is a fix from https://github.com/rauaap who correctly diagnosed the problem: ``` Error broadcasting transaction: error code: -26\nerror message\nmempool-script-verify-flag-failed (Script failed an OP_EQUALVERIFY operation), input 0 of ... ``` The decision to use the changed derivation for all addresses, not just taproot, came up during review. Unfortunately, the signing code (here) was not changed to match the address generation code (in the wallet). Reported-by: https://github.com/postanissue Fixes: https://github.com/ElementsProject/lightning/issues/8804 Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Changelog-Fixed: lightningd: we now correctly sign for non-taproot addresses given by nodes created by v25.12 or newer.