is it possible just to show filter values IF they are really applied to entries?
because sometimes a specific custom field value is not applied to any item but i
still appears in the filter form. this happens a lot if you use a dropdown field
with certain values.
if you pick a value which is currently not yet used, then no entry matches with
this filter.
it would be nice to have an option for each custom field in the settings. like
"hide values from filter if not in use" or something like that ;-)