Earlier fix for firefox fullscreen behavior
Earlier fix for firefox fullscreen behavior

This time without touching the unmap/map/remap stuff as that's reported to
cause trouble like clients appearing on the wrong workspace).

dkogan/notion,dkogan/notion,neg-serg/notion,dkogan/notion,neg-serg/notion,anoduck/notion,anoduck/notion,dkogan/notion.xfttest,knixeur/notion,p5n/notion,knixeur/notion,knixeur/notion,dkogan/notion.xfttest,p5n/notion,dkogan/notion.xfttest,p5n/notion,neg-serg/notion,dkogan/notion.xfttest,neg-serg/notion,raboof/notion,p5n/notion,anoduck/notion,knixeur/notion,anoduck/notion,anoduck/notion,knixeur/notion,dkogan/notion,raboof/notion,raboof/notion,dkogan/notion,raboof/notion,p5n/notion