/usr/share/doc/libexo-1-0-dbg/changelog.Debian.gz is in libexo-1-0-dbg 0.10.7-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libexo-1-0-dbg/../libexo-helpers/changelog.Debian.gz
/usr/share/doc/libexo-1-0-dbg/../libexo-helpers/changelog.Debian.gz