RBF nsequence: non-canonical 0x01, only on inputs[0]

[bc1cindy]

The RBF sequence is 0x00000001, set only on inputs[0]. On v2 txs 0x01 also adds an unintended 1-block BIP-68 timelock, and the odd value plus the mixed [0x01, MAX, …] pattern fingerprint the wallet on-chain, which is bad for payjoin and other collaborative txs.

Should use the canonical 0xFFFFFFFD on every input. Fix in cake-tech/bitcoin_base#12

ref: payjoin/rust-payjoin#1597

[bc1cindy]

@bc1cindy Have you been able to resolve this issue ?

PR is linked