Merge pull request nextcloud#20 from nextcloud/it-should-be-uid-not-token

It should be uid not token

Author: LukasReschke

lib/userbackend.php

@@ -67,7 +67,7 @@ public function __construct(IConfig $config,
 	private function userExistsInDatabase($uid) {
 		/* @var $qb IQueryBuilder */
 		$qb = $this->db->getQueryBuilder();
-		$qb->select('token')
+		$qb->select('uid')
 			->from('user_saml_users')
 			->where($qb->expr()->eq('uid', $qb->createNamedParameter($uid)))
 			->setMaxResults(1);