Display the correct models in the admin

feudal/backend/admin.py

 
 from django.contrib import admin
 from django.contrib.auth.admin import UserAdmin
+from django.contrib.auth.models import Group as AuthGroup
 
 from polymorphic.admin import PolymorphicParentModelAdmin, PolymorphicChildModelAdmin
 
@@ -27,9 +28,13 @@ class ClientAdmin(UserAdmin):
     list_filter = (TypeFilter,)
 
 
+admin.site.unregister(AuthGroup)
+
+
 @admin.register(Group)
 class GroupAdmin(PolymorphicChildModelAdmin):
     base_model = Group  # Explicitly set here!
+    show_in_index = True  # makes child model admin visible in main admin site
     # define custom features here