The linked URL takes about ten seconds to load. Before it is loaded, group status selector nor group selection is shown nor possible.
Version: master
Severity: normal
URL: http://meta.wikimedia.org/w/api.php?action=query&format=jsonfm&meta=messagegroups&mgformat=tree&mgprop=id%7Clabel%7Cdescription%7Cicon%7Cpriority%7Cprioritylangs%7Cpriorityforce%7Cworkflowstates&mgiconsize=32
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=54672