Merge branch '5.3' into 5.4

* 5.3:
  [Security] Do not overwrite already stored tokens for REMOTE_USER authentication
  [Validator] Fix validation for single level domains
  Fix redundant type casts
  Increased the reserved memory from 10k to 32k
  [DoctrineBridge] Add DbalLoggerTest to group legacy
  Leverage DBAL's getNativeConnection() method
  Fix idempotency of LocoProvider write method

Author: nicolas-grekas

Form/Type/DoctrineType.php

@@ -75,7 +75,7 @@ public static function createChoiceLabel(object $choice): string
      */
     public static function createChoiceName(object $choice, $key, string $value): string
     {
-        return str_replace('-', '_', (string) $value);
+        return str_replace('-', '_', $value);
     }
 
     /**

Tests/Logger/DbalLoggerTest.php

@@ -15,6 +15,9 @@
 use Psr\Log\LoggerInterface;
 use Symfony\Bridge\Doctrine\Logger\DbalLogger;
 
+/**
+ * @group legacy
+ */
 class DbalLoggerTest extends TestCase
 {
     /**
@@ -46,8 +49,8 @@ public function getLogFixtures()
             ['SQL', null, []],
             ['SQL', [], []],
             ['SQL', ['foo' => 'bar'], ['foo' => 'bar']],
-            ['SQL', ['foo' => "\x7F\xFF"], ['foo' => DbalLogger::BINARY_DATA_VALUE]],
-            ['SQL', ['foo' => "bar\x7F\xFF"], ['foo' => DbalLogger::BINARY_DATA_VALUE]],
+            ['SQL', ['foo' => "\x7F\xFF"], ['foo' => '(binary value)']],
+            ['SQL', ['foo' => "bar\x7F\xFF"], ['foo' => '(binary value)']],
             ['SQL', ['foo' => ''], ['foo' => '']],
         ];
     }