5d413c8e79 Add feature_taproot case involved invalid internal pubkey (Pieter Wuille)
Pull request description:
Add a test case to feature_taproot which involves an output that is (incorrectly) constructed, using an invalid internal public key and valid script tree. It is designed to detect cases where the script path spending validation logic does not detect this case, and instead treats the internal public key as the point at infinity.
Equivalent unit test case added in https://github.com/bitcoin-core/qa-assets/pull/98.
ACKs for top commit:
instagibbs:
ACK 5d413c8e79
aureleoules:
reACK 5d413c8e79
Tree-SHA512: dfa014e383cd2743f3c9a996e1f2a2fceb9e244edf4b05dc0c110c4ba32a87684482222907805a4ca998aebcb42a197bb3e7967bfb5f0554fe9f1e5aa5463603