This needs to be fixed in Scribus:
http://appstream.ubuntu.com/xenial/universe/issues/scribus.html
** Package changed: gnome-software (Ubuntu) => scribus (Ubuntu)
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** Attachment added: "Synaptic after searching for "scribus""
https://bugs.launchpad.net/ubuntu/+source/gnome-software/+bug/1577794/+attachment/4654543/+files/Screenshot%20at%2015-06-00.png
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