How to rebake animation on joint without rebaking the whole armature?

Hi,

Is it possible to rebake animation on joint without rebaking the whole armature?

For illustration, I have an armature with 50 bones.
After baking the animation, I found that one has been constrained improperly so I want to rebake it.

I have two options:

  1. If I opt for the “Selected Bones” only, it will rebake the selected bones but will delete the bake animation on the other bones. (Whaaaat?)
  2. I can bake it as default but this would take a bit some time since it will rebake not the selected bones but all the bones of the armature.

Is there a better way of doing this? i.e. rebake animation on joint without rebaking the whole armature?

Thank you for looking at my problem.