/**
* Get short title
* Override base method to assure a string and not an array
* as long as title_short is multivalued=true in solr
* (necessary because of faulty data)
*
* @return String
*/
public function getShortTitle()
{
$shortTitle = parent::getShortTitle();
return is_array($shortTitle) ? reset($shortTitle) : $shortTitle;
}
