Sign P2WSH

[ulrichard]

The function Account::sign() has a comment above stating that it doesn't work for P2WSH. But this is exactly what I need.
I can try to implement this, but I would need some guidance.
The first problem that I have is that the find() in accounts.rs line 652 does not find the matching instance.
I replicated the comparison in a unit test on my side:
`
assert_eq!(
Address::from_script(&spend.script_pubkey, Network::Bitcoin).unwrap().to_string(),
Address::p2sh(&instantiated[0].script_code, Network::Bitcoin).to_string()
);

    assert_eq!(
        spend.script_pubkey,
        instantiated[0].address.script_pubkey()
    );

`
This is where I struggle already. How should the find in accounts.rs be modified?

[ulrichard]

A more concrete example is in:
https://github.com/ulrichard/rust-wallet/blob/multisig_segwit/src/account.rs
witness_multisig_tests()