* Delete original entity when polymorph is deleted
* Switch to EntityTerminatingEvent
* Add RevertOnDelete option to PolymorphPrototype
* Fix error on server shutdown while polymorphed
* Set RevertOnDelete to false by default
* AsNullable
* Revert "Set RevertOnDelete to false by default"
This reverts commit 087c43fbb923c9369c61c9d001e18814b3de3aca.
* Use pattern matching instead of .Value