Using Alt+Click to break Transition node connections cannot be undone using the Undo command

Using Edit->Undo or Ctrl+Z has no affect after breaking using Alt+Click to break the connection of transition nodes. In the My Blueprint tab, extend Graphs->AnimGraph

Regression:
No - Same behavior exists in 4.13.2 and 4.14.0

1. Open UE4 Editor (Third Person Template)
2. Select the Third Person Character in the world outliner
3. Click the magnifying glass next to ThirdPerson_AnimBP_C in the details panel
4. Double click ThirdPerson_AnimBP to open
5. In the My Blueprint tab, extend Graphs->AnimGraph
6. Double click on Default to open animation transitions
7. Alt+Click on JumpStart to break connection to JumpLoop

Result:
Ctrl+Z has no affect and Edit->Undo History only shows the node as having been clicked on, it does not list the connection being broken as an action that can be undone.

Expected:
Using Ctrl+Z or Edit->Undo will reestablish the connection between the nodes.