/usr/share/doc/libaria-demo/changelog.Debian.gz is in libaria-demo 2.8.0+repack-1.2ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libaria-demo/../libaria2/changelog.Debian.gz
/usr/share/doc/libaria-demo/../libaria2/changelog.Debian.gz