Merge branch '6.3' into 6.4

* 6.3:
  fix merge
  [VarDumper] Test intl formatter broken since dumper does not replace the nnbsp character by standard space
  [WebProfilerBundle] Fix intercept external redirects
  [Webhook] Added missing XML attribute in config XSD
  [String] Skip a test when an issue is detected in PCRE2
  [ExpressionLanguage] Fix null coalescing propagation
  [Mailer] Stop using the (local) AWS shared configuration in the PHPUnit tests.
  detect colors on not windows
  fix xterm detection
  refactor: hyper check
  Missing translations for Slovak (sk) #51954
  Remove redundant PHPdoc line
  properly handle SYMFONY_DOTENV_VARS being the empty string
  Avoid incompatibility with symfony/console 7
  bug #45057 [Messenger] Avoid reconnecting active Redis connections.
  [HttpKernel] Catch `TypeError` if the wrong type is used in `BackedEnumValueResolver`
  [Serializer] fix regression where nullable int cannot be serialized
  do not overwrite an application's default serialization context

Node/NullCoalesceNode.php

@@ -39,7 +39,7 @@ public function compile(Compiler $compiler): void
     public function evaluate(array $functions, array $values): mixed
     {
         if ($this->nodes['expr1'] instanceof GetAttrNode) {
-            $this->nodes['expr1']->attributes['is_null_coalesce'] = true;
+            $this->addNullCoalesceAttributeToGetAttrNodes($this->nodes['expr1']);
         }
 
         return $this->nodes['expr1']->evaluate($functions, $values) ?? $this->nodes['expr2']->evaluate($functions, $values);
@@ -49,4 +49,17 @@ public function toArray(): array
     {
         return ['(', $this->nodes['expr1'], ') ?? (', $this->nodes['expr2'], ')'];
     }
+
+    private function addNullCoalesceAttributeToGetAttrNodes(Node $node): void
+    {
+        if (!$node instanceof GetAttrNode) {
+            return;
+        }
+
+        $node->attributes['is_null_coalesce'] = true;
+
+        foreach ($node->nodes as $node) {
+            $this->addNullCoalesceAttributeToGetAttrNodes($node);
+        }
+    }
 }

Tests/ExpressionLanguageTest.php

@@ -424,6 +424,9 @@ public function bar()
         yield ['foo["bar"]["baz"] ?? "default"', ['bar' => null]];
         yield ['foo["bar"].baz ?? "default"', ['bar' => null]];
         yield ['foo.bar().baz ?? "default"', $foo];
+        yield ['foo.bar.baz.bam ?? "default"', (object) ['bar' => null]];
+        yield ['foo?.bar?.baz?.qux ?? "default"', (object) ['bar' => null]];
+        yield ['foo[123][456][789] ?? "default"', [123 => []]];
     }
 
     /**