0125988 Implement test for merkle tree malleability in CPartialMerkleTree (Pieter Wuille)
0125988
Github-Pull: #5494 Rebased-From: 15de949bb9277e442302bdd8dee299a8d6deee60
This is a check that is mentioned in BIP 37, but never implemented in the reference code. As Bitcoin Core so far never decodes partial merkle trees, this is not a problem. But perhaps others use the code as a reference.