allErrs = append(allErrs, field.Required(fldPath.Child("selector"), ""))
	} else {
		labelSelectorValidationOpts := unversionedvalidation.LabelSelectorValidationOptions{
			AllowInvalidLabelValueInSelector: opts.AllowInvalidLabelValueInSelector,
		}
		allErrs = append(allErrs, unversionedvalidation.ValidateLabelSelector(spec.Selector, labelSelectorValidationOpts, fldPath.Child("selector"))...)
	}