Merge #17010 - Fix #16994 - Fixing the issue when assigning database to user with '_'

Pull-request: #17010
Fixes: #16994

Signed-off-by: William Desportes <williamdes@wdes.fr>

libraries/classes/Controllers/Server/PrivilegesController.php

@@ -229,7 +229,7 @@ class PrivilegesController extends AbstractController
                         ($username ?? ''),
                         ($hostname ?? ''),
                         ($tablename ?? ($routinename ?? '')),
-                        ($db_name ?? ''),
+                        (Util::unescapeMysqlWildcards($db_name) ?? ''),
                         $itemType
                     );
                 }