/usr/share/doc/python-spice-client-gtk/changelog.Debian.gz is in python-spice-client-gtk 0.30-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/python-spice-client-gtk/../spice-client-glib-usb-acl-helper/changelog.Debian.gz