                  'class': get_ul_class(self.radio_fields[db_field.name]),
              })
              kwargs['empty_label'] = _('None') if db_field.blank else None
  
          queryset = self.get_field_queryset(db, db_field, request)
          if queryset is not None:
              kwargs['queryset'] = queryset
  
          return db_field.formfield(**kwargs)
  
      def formfield_for_manytomany(self, db_field, request=None, **kwargs):
          """
 
</s> remove         queryset = self.get_field_queryset(db, db_field, request)
        if queryset is not None:
            kwargs['queryset'] = queryset
 </s> add         if not 'queryset' in kwargs:
            queryset = self.get_field_queryset(db, db_field, request)
            if queryset is not None:
                kwargs['queryset'] = queryset
        if not 'queryset' in kwargs:
            queryset = self.get_field_queryset(db, db_field, request)
            if queryset is not None:
                kwargs['queryset'] = queryset
                  'class': get_ul_class(self.radio_fields[db_field.name]),
              })
              kwargs['empty_label'] = _('None') if db_field.blank else None
  
        if not 'queryset' in kwargs:
            queryset = self.get_field_queryset(db, db_field, request)
            if queryset is not None:
                kwargs['queryset'] = queryset
        if not 'queryset' in kwargs:
            queryset = self.get_field_queryset(db, db_field, request)
            if queryset is not None:
                kwargs['queryset'] = queryset
        if not 'queryset' in kwargs:
            queryset = self.get_field_queryset(db, db_field, request)
            if queryset is not None:
                kwargs['queryset'] = queryset
  
          return db_field.formfield(**kwargs)
  
      def formfield_for_manytomany(self, db_field, request=None, **kwargs):
          """
keep keep keep keep replace replace replace keep keep keep keep keep
 Fixed #21405 -- Prevented queryset overwrite in BaseModelAdmin

Thanks guido@20tab.com for the report and Tim Graham for the
analyze. 
django/contrib/admin/options.py