02c6cb8039
There won't be dangling "empty" actions left behind anymore in the DopeSheet channel list after you've deleted all their keyframes (and don't want to add keyframes to them anymore). Of course, this poses problems with more actions getting created if you then go and keyframe those objects again. If this does turn out to be an equally bad problem, then another approach from the channel filtering code side (probably aided by the restructed code) will help (though doesn't solve the problem where people complain of having heaps of "empty" actions dangling from objects they no longer want animated).