current value versus display values for query fields

[michael-conway]

In MetadataTemplateElement, why are current value and display value two different fields for a ref_query? the ref query should be stored somewhere else....

/**
	 * Contains the CURRENT value of this element.
	 */
	private List<String> currentValue = new ArrayList<String>();

	/**
	 * Contains the DISPLAY value of this element. For example, an element of
	 * type REF_IRODS_QUERY may have a current value of "data.size", but a
	 * display value of "18375".
	 */
	private List<String> displayValue = new ArrayList<String>();