bitcoin-core:psbt: Use-of-uninitialized-value in CPubKey::IsFullyValid

Project: https://github.com/bitcoin/bitcoin.git Detailed Report: https://oss-fuzz.com/testcase?key=4958498419507200 Project: bitcoin-core Fuzzing Engine: libFuzzer Fuzz Target: psbt Job Type: libfuzzermsanbitcoin-core Platform Id: linux Crash Type: Use-of-uninitialized-value Crash Address: Crash...