ArgumentOutOfRangeException when moving point in ShapeEditor

Repro:
1- Open project in attachment.
2- Select 'Diamond' sprite in the Project Browser.
3- Open sprite editor.
4- Select 'Edit Physics Shape' or 'Edit Outline' in Sprite Editor drop down menu.
5- Select a control point in shape.
6- Move point while pressing the ctrl key.

You'll notice the following error:
ArgumentOutOfRangeException: Argument is out of range.

Reproducible: 2017.1f3, 2017.2b9 (stw)
Not reproducible: 5.6.0f1