[2D] [Sprite Editor] Custom Physics Shape for Polygon sprite primitive is a pentagon regardless of # of sides on Polygon

Steps to Repro:
1. create a Polygon sprite primitive in your Assets folder
2. change the number of sides on the Polygon from 5 to any other number
3. click on Apply
4. change the Sprite Editor to Custom Outline and click on the sprite
6. the Custom Outline will match the number of sides that was chosen
7. change the Sprite Editor to Custom Physics Shape and click on the sprite

The Custom Physics Shape will be a pentagon regardless of how many sides were chosen