Fix the "ifChangedGuard" code in the JIT change detector which was incorrectly refactored in a2770c8a5259aacc64f21170a93b5124f55511b8.
Fix the "ifChangedGuard" code in the JIT change detector which was incorrectly refactored in a2770c8a5259aacc64f21170a93b5124f55511b8.