/usr/share/doc/libpolkit-gtk-mate-1-0-dbg/AUTHORS is in libpolkit-gtk-mate-1-0-dbg 1.12.0-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libpolkit-gtk-mate-1-0-dbg/../libpolkit-gtk-mate-1-0/AUTHORS