Selection issues when duplicating State machines

When a State machine is duplicated, all states inside of the state machine keep their original names. This causes duplicate names and selection issues.

1. Open the editor
2. Create a new animation blueprint
3. Select "TutorialTPP_AnimBlueprint"
4. Select "TutorialTPP_Skeleton" (View Options > Show engine content > Select skeleton from the options)
5. Click OK
6. Open Animation Blueprint
7. Set Blueprint to "TutorialTTP_AnimBlueprint" (Drop down in the top right)
8. Add a new state machine
9. Add a state to that state machine
10. Copy and paste the state machine (There should now be two states with the same name)
11. Double click the state that was created first (The one that is higher up in the hierarchy)
12. Double click the state that was created second (Lower in the hierarchy)
13. Notice that the selections pops back to the first state that was created with the same name

Expected: The State that was opened should be highlighted in the hierarchy
Result: The state that was created first that shares a name with another state is highlighted when trying to open another state that shares the same name