ArgumentOutOfRangeException when selecting transition on "Any State" in the Animator.

Transition that goes from 'Any State' to any other state triggers ArgumentOutOfRangeException when
selected on synced layer on the animator controller.

Repro:
1- Open project in attachment.
2- Open Animator Window and select asset 'New Animator Controller'.
3- Select 'New Layer' in 'Layers' tab.
4- Select transition that goes from 'Any State' to 'New Animation'.

You'll notice ArgumentOutOfRangeException in the console.

Reproduced: 2017.1.0p3, 2018.1b1, 2018.2a1