Originally the accepter waited for the peer to send us their commitment
sigs before we send ours; this changes things so that the accepter
sends their commitment sigs ASAP.
This test fails: when cln is not the channel initiator, it waits for the other node to send commit_sig before sending its own commit_sig. There is no reason to do that, both nodes should send commit_sig immediately after exchanging tx_complete? Otherwise it's a missed opportunity to finalize the channel creation on reconnection, because in that case cln hasn't saved the channel and fails it on reconnection.
Reported-By: @t-bast
89f6fd27e3