}
	}

	// clear not present fields
	for k := range original {
		if _, found := m[k]; !found {
			delete(original, k)
		}
	}
	return nil
}

// mergePatchIntoOriginal processes $setElementOrder list.
// When not merging the directive, it will make sure $setElementOrder list exist only in original.
// When merging the directive, it will try to find the $setElementOrder list and