/usr/share/doc/libgetdata-dev/changelog.Debian.gz is in libgetdata-dev 0.9.0-2.2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libgetdata-dev/../libgetdata5/changelog.Debian.gz
/usr/share/doc/libgetdata-dev/../libgetdata5/changelog.Debian.gz