Merge pull request #2670 from nextcloud/issue-2646-dont-connet-to-database-before-creating-it

Do not connect to database before creating it

lib/private/Setup/MySQL.php

@@ -35,7 +35,7 @@ class MySQL extends AbstractDatabase {
 
 	public function setupDatabase($username) {
 		//check if the database user has admin right
-		$connection = $this->connect();
+		$connection = $this->connect(['dbname' => null]);
 
 		$this->createSpecificUser($username, $connection);