Fixed a facet filter bug where redundant code would error out depending on the query.

starfields_drf_generics/filters.py

@@ -334,8 +334,7 @@ class FacetFilter(BaseFilterBackend):
 
         if view.facets:
             for facet in view.facets:
-                request_slug = request.query_params[facet.slug]
-                if facet.slug in request.query_params.keys() and request_slug:
+                if facet.slug in request.query_params.keys():
                     tag_filterlist = request.query_params.get(facet.slug)
                     if tag_filterlist == '':
                         # If the tag filterlist is empty then we're not