added custom autocomplete for category in product admin, still not working correctly

products/views.py

@@ -223,12 +223,11 @@ class CategoryTagAutocomplete(autocomplete.Select2QuerySetView):
         Tag = Product.category.tag_model
 
         # Return nothing if not auth
-        if not self.request.is_authenticated():
+        if self.request.user.is_anonymous:
             return Tag.objects.none()
 
         qs = Tag.objects.all()
-
         if self.q:
-            qs = qs.filter(name__istartswith=self.q)
+            qs = qs.filter(name__icontains=self.q)
 
-        return self.q
+        return qs       # [x.label for x in qs]