Star tool shows strange angle

[0HyperCube]

When using the star mode of the polygon tool, you can edit the star by dragging the corner whilst still in the star tool. This causes some very strange functionality as seen below:

Apparently this is meant to be a right angle. However it is not.

[Keavon]

We can draw it more accurately like this, where the annotated blue lines here are parallel to the sides so the square mark is skewed in the same manner as the whole star shape:

[0HyperCube]

It would be better if it actually snapped to being a right angle.