/usr/share/doc/libpoppler-glib-dev/changelog.Debian.gz is in libpoppler-glib-dev 0.41.0-0ubuntu1.13.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libpoppler-glib-dev/../libpoppler58/changelog.Debian.gz