OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=49164
Crash type: Container-overflow READ 1
Crash state:
STOFFStarMathToMMLConverterInternal::Parser::convert
STOFFStarMathToMMLConverterInternal::Parser::parse
STOFFStarMathToMMLConverter::convertStarMath