@ -181,6 +181,7 @@ class AllConfig implements \OCP\IConfig {
'WHERE `userid` = ? AND `appid` = ? AND `configkey` = ?';
$result = $this->connection->executeQuery($sql, array($userId, $appName, $key));
$oldValue = $result->fetchColumn();
$result->closeCursor();
$exists = $oldValue !== false;
if($oldValue === strval($value)) {