Add safeties for =destroy hooks. FossilOrigin-Name: 2fae5297a0d0598cc3580777688b4f4307de008d4f379d2fb224c8a74cb9b708
FossilOrigin-Name: 6f368f0d303c65000c74f346b7bc39ffca964aff7767c60be2384739e5dc4d72