I need to customize User Registration. I inherited my control from UserModuleBase. I checked out definitions for AddUser (UserId=Null.NullInteger) & IsUser (uses Request.Authenticated in its definition).

As both do not use the same technique (UserId or Authenticated) to arrive at their conclusion, This is just to confirm that these 2 properties can never be True simultaneously.

Is there any scenario, where these 2 would be true simultaneously???