Merge branch '5.0' into 5.1

* 5.0:
  Fix abstract method name in PHP doc block
  Various cleanups
  [HttpClient] fix issues in tests
  Fixes sprintf(): Too few arguments in form transformer
  [Console] Fix QuestionHelper::disableStty()
  [Validator] Use Mime component to determine mime type for file validator
  validate subforms in all validation groups
  Update Hungarian translations
  Add meaningful message when Process is not installed (ProcessHelper)
  [PropertyAccess] Fix TypeError parsing again.
  [TwigBridge] fix fallback html-to-txt body converter
  [Security/Http] fix merge
  [ErrorHandler] fix setting $trace to null in FatalError
  [Form] add missing Czech validators translation
  [Validator] add missing Czech translations
  never directly validate Existence (Required/Optional) constraints

Author: nicolas-grekas

Firewall/ExceptionListener.php

@@ -185,7 +185,7 @@ private function handleAccessDeniedException(ExceptionEvent $event, AccessDenied
 
     private function handleLogoutException(ExceptionEvent $event, LogoutException $exception): void
     {
-        $event->setException(new AccessDeniedHttpException($exception->getMessage(), $exception));
+        $event->setThrowable(new AccessDeniedHttpException($exception->getMessage(), $exception));
 
         if (null !== $this->logger) {
             $this->logger->info('A LogoutException was thrown; wrapping with AccessDeniedHttpException', ['exception' => $exception]);

Tests/Firewall/ExceptionListenerTest.php

@@ -165,8 +165,8 @@ public function testLogoutException()
         $listener = $this->createExceptionListener();
         $listener->onKernelException($event);
 
-        $this->assertEquals('Invalid CSRF.', $event->getException()->getMessage());
-        $this->assertEquals(403, $event->getException()->getStatusCode());
+        $this->assertEquals('Invalid CSRF.', $event->getThrowable()->getMessage());
+        $this->assertEquals(403, $event->getThrowable()->getStatusCode());
     }
 
     public function getAccessDeniedExceptionProvider()