Child actors cannot be recognized as children of parent actor within parent blueprint

Parent blueprints do not recognize child class actors as the same type as the initial parent blueprint. This makes it difficult to create a master blueprint for spawning/ai control/etc.

1. Download, unzip, and open attached zip file
2. Open Parent Actor
3. Make sure "Child Class In" node is connected to function "TakeChildActorIn"
4. Compile

Results:

Warning (4.8.2) or Error (4.9) appear in output log stating that the node and pin are not compatible. Blueprint does not compile.

Expected:

Blueprint compiles, no error warning is presented.

Fix UE-51650

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