* Durian Report / Own Todo: Action Groups with no F-Curves in them visible were still shown in the animation editors. After several failed attempts in the past, finally got this working by making a little shuffling + a simpler solution.
* Bugfix #20134: Graph Editor Keys -> Transform Menu was using the wrong operators. C+P error from copying menus over from Dopesheet
* Muting Action Groups didn't draw all F-Curves contained in group as being muted too.