Creating or selecting a Channel Mixer adjustment layer moves focus to the Red value field
About a hundred times a day I have to stop to wonder why my keyboard shortcut isn't doing anything, then glance up at the Properties panel and see the red Channel Mixer field highlighted and awaiting input, then I have to hit escape or enter to get back to work. Then it happens again a few seconds later.
This is brand new behavior in one of the last two updates, and it's a flow-killer. I'm generously assuming it's a bug, because if someone thought this was an improvement, that would be a terrible omen for future UI tweaks.

