Question
Hiding Mask Lines but keeping vertices.

How cool is this!? This happened by accident in a shot I was masking out. And then it stayed like this for another 20 minutes, and it was REALLY great to mask out without having the lines in the way all the time. But it was a one time thing, I've not been able to replicate it. Is this an actual thing that I can do or did I just hit a graphics glitch?
I was on Ae 15.1.2 on Windows 10.
