/usr/share/doc/libghc-yesod-default-prof/changelog.Debian.gz is in libghc-yesod-default-prof 0.6.1-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libghc-yesod-default-prof/../libghc-yesod-default-dev/changelog.Debian.gz