/usr/share/doc/synfig-dbg/changelog.Debian.gz is in synfig-dbg 1.0.2-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/synfig-dbg/../libsynfig0v5/changelog.Debian.gz
/usr/share/doc/synfig-dbg/../libsynfig0v5/changelog.Debian.gz