BREAKING CHANGE: Update Signing Message for Funding Lock and Commitment Lock (with Pending HTLC) #17
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This PR update the signing message of funding lock and commitment lock(with pending htlc).
In the original code, the signing message was tx_hash. This approach faces challenges during script upgrades because the cell_dep field in the transaction became invalid, which causes the entire transaction invalid.
To resolve this, we empty
RawTransaction#cell_depfield, then useblake2b_256(&raw_tx.as_slice())to get the signing message.