func copyWithoutManagedFields(obj runtime.Object) (runtime.Object, bool, error) {
	isAccessor := true
	if _, err := meta.Accessor(obj); err != nil {
		isAccessor = false
	}
	isList := meta.IsListType(obj)
	_, isTable := obj.(*metav1.Table)
	if !isAccessor && !isList && !isTable {
		return nil, false, nil
	}

	// TODO a deep copy isn't really needed here, figure out how we can reliably

	tests := []struct {
		obj    runtime.Object
		isList bool
	}{
		{&testapigroup.CarpList{}, true},
		{&testapigroup.Carp{}, false},
	}
	for _, item := range tests {
		if e, a := item.isList, meta.IsListType(item.obj); e != a {
			t.Errorf("%v: Expected %v, got %v", reflect.TypeOf(item.obj), e, a)
		}
	}
}

func TestExtractList(t *testing.T) {
	list1 := []runtime.Object{