Fix is_own_profile predicate

aleksis/apps/abi/rules.py

@@ -16,7 +16,9 @@ def has_abi_person(user):
 
 @predicate
 def is_own_profile(user, obj):
-    return user.person.abi_person == obj.profile.person
+    if not obj:
+        return True
+    return user.person == obj.person.person
 
 
 # View abi person list