Drawing masks

It is still very difficult or rather impossible to draw a mask with multiple vertex without a few bezier vertex popping up. And yes I do not drag my mouse.

These few bezier are difficult to disable with alt clicking (often get a different icon).

This behavior has been present since day one.

For a non bezier mask I have to start with a rectangular to be certain I get no bezier. But this workaround can be somewhat cumbersome.