OSV-2020-1366 Heap-use-after-free in RDKit::SubstanceGroup::addParentAtomWithBookmark

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24406 Crash type: Heap-use-after-free READ 4 Crash state: RDKit::SubstanceGroup::addParentAtomWithBookmark RDKit::SGroupParsing::ParseSGroupV2000VectorDataLine RDKit::ParseMolBlockProperties...