[PCG] Undoing the deletion of a pcg actor removes the Instance Category from the pcg component, specifically no graph parameter can be seen.

Context:
PCGComponents on actors contains a category "Instance" that allows the user to connect a PCG Graph of their choosing to the PCGComponent which allows the Procedural Node Graph to sample the Level.

Problem:
The problem is undoing the deletion of a pcg actor removes the Instance Category from the pcg component, specifically no graph parameter can be seen to adjust.
This can be worked around by deactivating and activating the component, but the licensee stated that in their production tools, even doing this can't make the PCG graph bake again. (Tools they mentioned that aren't able to isolate easily in a repro project).

1.) Download and open repro project uploaded in ticket
2.) Place actor "TestActor" on the map; Content Drawer > Content > UndoIssue > TestActor
3.) In the details panel click on PCG (PCGComponent)
Observe: The category "Instance" is there with Graph parameter
4.) Click on TestActor and then delete it
5.) Undo (Ctrl + Z)
6.) Click on TestActor and in the details panel click on PCG (PCGComponent)
Observe: The category "Instance" is now missing, specifically PCG graph can't be generated again nor the graph re-assigned
Expected: The category "Instance" to be there with Graph parameter