/usr/share/doc/libghc-monads-tf-prof/changelog.Debian.gz is in libghc-monads-tf-prof 0.1.0.2-5.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libghc-monads-tf-prof/../libghc-monads-tf-dev/changelog.Debian.gz