/usr/share/doc/libsqlheavy-dev/changelog.Debian.gz is in libsqlheavy-dev 0.1.1-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libsqlheavy-dev/../libsqlheavy0.1-0/changelog.Debian.gz
/usr/share/doc/libsqlheavy-dev/../libsqlheavy0.1-0/changelog.Debian.gz