Undoing creation of physics contraint will also undo Split action

[Shiu]

In an empty project:

1. create a bone.
2. split the bone.
3. select the new bones created from the split action, and create a physics constraint.
4. undo.

When undoing, the physics constraint will be gone, but the split bones action will also be gone so you are left with a single bone. The expected behaviour is that when undoing the physics constraint, you should still be left with multiple bones.

[NathanSweet]

4.2.04-beta