/**
  * Render using linked field
  *
  * @param \int[]|\string[] $values
  * @param \Doku_Renderer $R
  * @param string $mode
  * @return bool
  */
 public function renderMultiValue($values, \Doku_Renderer $R, $mode)
 {
     if (!$this->usesLookup()) {
         return parent::renderMultiValue($values, $R, $mode);
     } else {
         $values = array_map(function ($val) {
             list(, $val) = json_decode($val);
             return $val;
         }, $values);
         return $this->column->getType()->renderMultiValue($values, $R, $mode);
     }
 }