// If update from annotation to attribute failed we can attempt try to validate update from nil value.
		if validateStorageClassUpgradeFromNil(oldPvc.Annotations, oldPvc.Spec.StorageClassName, newPvc.Spec.StorageClassName, opts) {
			newPvcClone.Spec.StorageClassName = oldPvcClone.Spec.StorageClassName // +k8s:verify-mutation:reason=clone
		}