How to reproduce:
* Drag a property from the new Blackboard to the graph
* duplicate or Copy/paste this property
* Notice that the property operator is properly duplicated
* Look in the inspector
* Notice that the Property is also duplicated with a number increment to the name

Expected result:
The Property shouldn't be duplicated in the Blackboard when Copy/paste/Duplicating a property operator in the Graph.

Actual Result:
The property are duplicated in the Blackboard when their operator counter part are being duplicated.