When the query matches many languages and/or message groups, the faced list
becomes too large to be handled comfortably.
Showing only a short list of the most relevant facets.

For the message groups, use group selector when the list of message group list is long.

More details on this at
http://commons.wikimedia.org/w/index.php?title=File:Translate-workflow-spec.pdf&page=21

Version: unspecified
Severity: enhancement
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=45482