/usr/share/doc/libgtkglada2.24.1/changelog.Debian.gz is in libgtkglada2.24.1 2.24.1-14.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libgtkglada2.24.1/../libgtkada2.24.1/changelog.Debian.gz