User::externalizeValue

static function externalizeValue(FieldType $fieldType, $context, $value)
{
	$useExtraction = $fieldType->getSettings()['ExternalExtract'] ?? false;
	if ($useExtraction && $value)
	{
		$docId = $fieldType->getDocumentId() ?: $fieldType->getDocumentType();
		return CBPHelper::ExtractUsers($value, $docId, true);
	}

	return parent::externalizeValue($fieldType, $context, $value);
}