/usr/share/doc/libpugixml-dev/changelog.Debian.gz is in libpugixml-dev 1.8.1-7.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libpugixml-dev/../libpugixml1v5/changelog.Debian.gz
/usr/share/doc/libpugixml-dev/../libpugixml1v5/changelog.Debian.gz