How to reproduce:
1. Open the attached project
2. Open LaforgeControllerClean in animator window
3. Double click on Grounded state
4. Double click on Idle state
5. Click one of the transitions "IdleReady->Exit"
6. Notice that Inspector is empty and there is StackOverflowException in the Console
7. If one creates a new state, transition to Exit and clicks on the transition, he/she will also get the exception