I have a Many-to-Many relationship between two models, Group and User (not the ones from auth.) I can follow one of these relationships by "group.get_user_list()" which makes sense, but when I try to filter it according to a query (such as "group.get_user_list(last_name__icontains=request.POST['query'])") I get the error "method_get_many_to_many() got an unexpected keyword argument 'last_name__icontains'" so I imagine I can't add the filter as I would if I didn't have the foreign key relationship. How should I be doing this?
