Luke Dashjr

@gavinandresen @mikehearn

Yes, authors need to ACK any change...

@CodeShark @sipa @jl2012

@voisine

@CodeShark @jl2012 @sipa (Although I actually think it is clearer before this change...)

@afk11 Reason "valid" was not enough, is that `OP_1NEGATE` is valid but not recognised as a witness script.

No, if it causes the script to fail, it is invalid.

OP_1NEGATE does not cause a script to fail, it only causes the input spending it to be disallowed to include witness data.

@sipa @jonasnick @ajtowns

@jimmysong