Can't assign users/groups when creating a ticket.

[AdrienClairembault]

Tested on latest main branch.

[2025-07-04 08:33:31] glpi.CRITICAL:   *** Uncaught PHP Exception RuntimeException: "MySQL query error: Incorrect 
integer value: '' for column 'use_notification' at row 1 (1366) in SQL query "INSERT INTO `glpi_tickets_users` (`type`, 
`use_notification`, `alternative_email`, `tickets_id`, `users_id`) VALUES ('2', '', '', '123', '2')"." at DBmysql.php line 369

  Backtrace :
  ./src/DBmysql.php:369                              
  ./src/DBmysql.php:1311                             DBmysql->doQuery()
  ./src/CommonDBTM.php:776                           DBmysql->insert()
  ./src/CommonDBTM.php:1392                          CommonDBTM->addToDB()
  ./src/CommonITILObject.php:9406                    CommonDBTM->add()
  ./src/CommonITILObject.php:3177                    CommonITILObject->updateActors()
  ./src/Ticket.php:1788                              CommonITILObject->post_addItem()
  ./src/CommonDBTM.php:1408                          Ticket->post_addItem()
  ./front/ticket.form.php:80                         CommonDBTM->add()
  ...Glpi/Controller/LegacyFileLoadController.php:59 require()
  ./vendor/symfony/http-kernel/HttpKernel.php:181    Glpi\Controller\LegacyFileLoadController->__invoke()
  ./vendor/symfony/http-kernel/HttpKernel.php:76     Symfony\Component\HttpKernel\HttpKernel->handleRaw()
  ./vendor/symfony/http-kernel/Kernel.php:197        Symfony\Component\HttpKernel\HttpKernel->handle()
  ./public/index.php:70                              Symfony\Component\HttpKernel\Kernel->handle()