// Check we aren't changing immutable fields. This only matters for in place upgrade (non revision)
		// This one is not a selector, it must be an exact match
		if sel := mustGetLabels(t, deployment, "spec.selector.matchLabels"); !reflect.DeepEqual(deploymentSelector, sel) {
			t.Fatalf("Depployment selectors are immutable, but changed since 1.5. Was %v, now is %v", deploymentSelector, sel)
		}
	})
}