In Blender 4.3, when you selected a bone in a rig, the timeline would show you the keyframes for that bone, and then the action channel would show every keyframe for that rig. 
However, I've noticed in 5.0 it will only show the keys in the action channel for the currently selected bone, regardless of the other bones in the rig.
It seems like the only way for the action channel to show all of its keyframes is to show all the channels for the rig, but ideally I don't want to do that so as to not clutter up the timeline. Is there a way to restore the old functionality?
