Fixed EZP-20791: PHP Fatal error: Method eZ\Publish\Core\FieldType\XmlText\Value::__toString() must return a string value
Merge pull request #337 from patrickallaert/EZP-20791

Fixed EZP-20791: PHP Fatal error: Method eZ\Publish\Core\FieldType\XmlText\Value::__toString() must return a string value