Before:
Create()
BeginCreate()
BeforeCreate()
init UID <---------------------
strategy code
After:
Create()
init UID <-------------------------
BeginCreate()
BeforeCreate()
strategy code
This also wipes UID early (suggested by David) and asserts it is set in
BeforeCreate().
Kubernetes-commit: 5615de51f9e768dd01d7fe49a48e8db756bd8ac8