flatbuffers:scalar_fuzzer: Use-of-uninitialized-value in RegexMatcher::Match

Project: https://github.com/google/flatbuffers.git Detailed Report: https://oss-fuzz.com/testcase?key=6023944574992384 Project: flatbuffers Fuzzing Engine: libFuzzer Fuzz Target: scalarfuzzer Job Type: libfuzzermsanflatbuffers Platform Id: linux Crash Type: Use-of-uninitialized-value Crash Addres...