Notifying from an update method (in a Form) fails when config session.serialization is set to json

[PatrickePatate]

Code16\Sharp\Data\NotificationData::__construct(): Argument #2 ($level) must be of type Code16\Sharp\Enums\NotificationLevel, string given, called in /var/www/quimby/vendor/code16/sharp/src/Data/Data.php on line 28