overlappingWriteUnion
ftp://ftp.de.debian.org/debian/pool/main/u/upb/upb_0.0.0~git200730.orig.tar.xz
upb-0.0.0~git200730/upb/decode.c:244:21: error: Overlapping read/write of union is undefined behavior [overlappingWriteUnion]
ftp://ftp.de.debian.org/debian/pool/main/v/viking/viking_1.11.orig.tar.xz
viking-1.11/src/uibuilder.c:361:14: error: Overlapping read/write of union is undefined behavior [overlappingWriteUnion]