Comment 2 for bug 1674762

I saw and also repro'ed #49579, but since that was already filed I left it alone.

This bug looks different in that it randomly locks or not with no change to the focus or open windows. It does repro much more frequently when I have certain combinations of windows open, but the failure to lock is not guaranteed. It also doesn't seem to be related to any of the menus and an explicit lock-screen isn't ignored.

I don't know enough about the structure of the OS to disagree any further, so I'll defer to your judgement.