/usr/share/doc/libghc-primes-prof/changelog.Debian.gz is in libghc-primes-prof 0.2.1.0-10build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libghc-primes-prof/../libghc-primes-dev/changelog.Debian.gz