/usr/share/doc/libgwenhywfar60-dbg/changelog.Debian.gz is in libgwenhywfar60-dbg 4.10.0beta-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libgwenhywfar60-dbg/../libgwenhywfar60/changelog.Debian.gz