When setting a new password after having click on "lost password" at authentication, there is a fatal error :

[13-May-2020 07:44:42] WARNING: [pool tuleap] child 835 said into stderr: "NOTICE: PHP message: PHP Fatal error: Uncaught TypeError: Argument 1 passed to PFUser::setPassword() must be an instance of Tuleap\Cryptography\ConcealedString, string given, called in /usr/share/tuleap/src/www/account/lostlogin.php on line 67 and defined in /usr/share/tuleap/src/common/User/User.class.php:1205"

How to reproduce:

1. On a database mode, not LDAP, click on "Lost password" at authentication page
2. Set a new password
3. On submit, blank page