LV2013 .NET callback bug

I'm running the Passing Data to a .NET Event Callback.vi sample (LV2013SP1).

After stopping the vi with stop button, i can't edit the Callback - EventHappened.vi. This subvi is still loaded and can't be edited.

To edit the callback vi i need to close projet and reopen it. 

How can we stop the callback.vi to go in edit mode after stopping the toplevel vi?

When running the same under LV2012, the callback vi can be edited after stop toplevel vi.

Regards

Alexandre