fix(login): user get null check

[skjnldsv]

Nachricht: OCA\UserOIDC\Service\LdapService::isLdapDeletedUser(): Argument #1 ($user) must be of type OCP\IUser, null given, called in /var/www/nextcloud/apps/user_oidc/lib/Controller/LoginController.php on line 506 in file '/var/www/nextcloud/apps/user_oidc/lib/Service/LdapService.php' line 47
Datei: /var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php
Zeile: 169

Trace
#0 /var/www/nextcloud/lib/private/AppFramework/App.php(183): OC\AppFramework\Http\Dispatcher->dispatch(Object(OCA\UserOIDC\Controller\LoginController), 'code')
#1 /var/www/nextcloud/lib/private/Route/Router.php(315): OC\AppFramework\App::main('OCA\\UserOIDC\\Co...', 'code', Object(OC\AppFramework\DependencyInjection\DIContainer), Array)
#2 /var/www/nextcloud/lib/base.php(1068): OC\Route\Router->match('/apps/user_oidc...')
#3 /var/www/nextcloud/index.php(38): OC::handleRequest()
#4 {main}

[julien-nc]

Thanks! I wonder why Psalm didn't report that as an error. It's listed as INFO: PossiblyNullArgument.

[skjnldsv]

Thanks! I wonder why Psalm didn't report that as an error. It's listed as INFO: PossiblyNullArgument.

Good question, I wonder if psalm really runs here 🙈