Replace references with C++ class

In my project I recently decided to move a BP class into C++ so its variables could be referenced by other C++ classes. I had several BP classes inherited from the original BP class, so I tried to just delete the BP class and replace it with my new C++ class in the dialog that popped up. However, it seems that only BP classes are listed in there. Is there any way of doing this outside of manually reparenting/changing the references?

The dialog I’m talking about:

7 months later and I run into this situation again, figured I’d bump this in the hopes that someone might notice it this time.