/usr/share/doc/libgtkada2.24.4-dev/changelog.Debian.gz is in libgtkada2.24.4-dev 2.24.4dfsg-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libgtkada2.24.4-dev/../libgtkada2.24.4/changelog.Debian.gz