Control: severity -1 serious The Debian GNOME team would like to remove libunique from Debian. Therefore, I'm bumping the severity of this bug to serious.
Please see the master bug https://bugs.debian.org/895520 for documentation on moving away from libunique. It looks like it requires finishing the port to gtk3. Because xfce4-notes-plugin is a "key package", it won't be automatically removed from Testing. But note that this package is one of the last 2 or 3 keeping libunique in Debian. Thanks, Jeremy Bicha
