code: func (deploymentStatusStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) {
  	newDeployment := obj.(*apps.Deployment)
  	oldDeployment := old.(*apps.Deployment)
  	newDeployment.Spec = oldDeployment.Spec
  	newDeployment.Labels = oldDeployment.Labels
  }
docs: // PrepareForUpdate clears fields that are not allowed to be set by end users on update of status