// preserving values that we allocated on their behalf.  For example, they
// might create a Service without specifying the ClusterIP, in which case we
// allocate one.  If they resubmit that same YAML, we want it to succeed.
func patchAllocatedValues(after After, before Before) {
	oldSvc, newSvc := before.Service, after.Service

	if needsClusterIP(oldSvc) && needsClusterIP(newSvc) {