on multi monitor, duplicate desktops in workspace switcher

Submitted by Kevin Fenzi

Assigned to Nick Schermer

Link to original bug (#10544)

Description

Downstream bug:

https://bugzilla.redhat.com/show_bug.cgi?id=1038517

Basically with 1 monitor and 4 virtual desktops everything is normal. Add second monitor and there's 8 virtual desktops appearing, even tho you can really only click on 4 of them.

Version: 4.10.1