But in that case, https://github.com/kubernetes/kubernetes/blob/master/pkg/controller/apis/config/v1alpha1/defaults.go#L51, we shoud set value like that `obj.TTLAfterFinishedController.ConcurrentTTLSyncs = c.Int31()`  or the test will failed  ```  roundtrip.go:338: KubeControllerManagerConfiguration: diff:   \t\tobject.TTLAfterFinishedController.ConcurrentTTLSyncs:  \t\t  a: -135047001  \t\t  b: 5  ```