backwards compatability for NestedGroupModel

netbox/utilities/mptt.py

@@ -1,7 +1,7 @@
+from django.db.models import Manager
 from mptt.managers import TreeManager as TreeManager_
 from mptt.querysets import TreeQuerySet as TreeQuerySet_
 
-from django.db.models import Manager
 from .querysets import RestrictedQuerySet
 
 __all__ = (