Self Referencing Widget in a Player controller corrupts player controller blueprint

If a the "Create Widget" node is called with an event tick and is uses a self reference (for the target player) inside the player controller it will make it so that the Player Controller blueprint cannot be opened after the editor is closed and reopened. It will crash on attempt to open the player controller blueprint.

1. Open Editor
2. Create a Player Controller
   Right click content browser > Blueprints > Player Controller
3. Create Widget
   Right click content browser > User interface > Widget Blueprint
4. Assign the new player controller via the Game mode
5. Open player controller and create the blueprint in the attached picture
6. Compile and Save
7. Click PIE (Shouldn't crash but might)
8. Close the project
9. Open the Project
10. Try to open the player controller
11. Notice the engine crashes

Problem with UMG / Networking 4.5

Problem with UMG / Networking 4.5