UserField::getFormattedValueForKanban

protected function getFormattedValueForKanban($fieldValue, int $itemId, Options $displayOptions)
{
	$results = [];
	$prefix = ($displayOptions->getGridId() ?? '');

	$fieldValue = is_array($fieldValue) ? $fieldValue : [$fieldValue];
	foreach ($fieldValue as $elementId)
	{
		if (!$this->isMultiple())
		{
			return $this->getPreparedValue($elementId, $prefix);
		}

		$preparedValue = $this->getPreparedValue($elementId, $prefix);
		if ($preparedValue !== '')
		{
			$results[] = $preparedValue;
		}
	}

	return $results;
}