/usr/share/doc/libtalloc2-dbg/changelog.Debian.gz is in libtalloc2-dbg 2.1.0-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libtalloc2-dbg/../libtalloc2/changelog.Debian.gz
/usr/share/doc/libtalloc2-dbg/../libtalloc2/changelog.Debian.gz