After you add a skinned mesh component to a game object, using undo, skinned mesh is not removed

To reproduce:
1. Create new project
2. Create cube
3. Add Skinned Mesh component
4. Press undo

Expected result: component is removed
Actual result: component is still there

Reproduced on: 5.5.4p1 2017.2.0b1
Does not reproduce on: 5.4.5p4
Regression introduced on: 5.5.0a6
Notes: after pressing undo and the pressing redo Unity crashes. If you remove component manually by right clicking on it then pressing Undo and Redo, after couple of time Unity freezes.