/usr/share/doc/gstreamer1.0-plugins-ugly-dbg/README.gz is in gstreamer1.0-plugins-ugly-dbg 1.14.0-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/gstreamer1.0-plugins-ugly-dbg/../gstreamer1.0-plugins-ugly/README.gz