OSV-2024-42 Heap-double-free in dwg_free_common_entity_data

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=66111 Crash type: Heap-double-free Crash state: dwgfreecommonentitydata dwgfreePLANESURFACE dwgfreevariablenoclass...