/usr/share/doc/libmidgard2-dev/changelog.Debian.gz is in libmidgard2-dev 10.05.7.1-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libmidgard2-dev/../libmidgard2-2010.05/changelog.Debian.gz