Merge branch '6.4' into 7.2

* 6.4:
  [Intl] Fix locale validator when canonicalize is true
  Update GitHub PR template
  [Notifier] Update fake SMS transports to use contracts event dispatcher.

Author: nicolas-grekas

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,22 +1,25 @@
 | Q             | A
 | ------------- | ---
-| Branch?       | 7.4 for features / 6.4, 7.2, or 7.3 for bug fixes <!-- see below -->
+| Branch?       | 7.4 for features / 6.4, 7.2, or 7.3 for bug fixes
 | Bug fix?      | yes/no
-| New feature?  | yes/no <!-- please update src/**/CHANGELOG.md files -->
-| Deprecations? | yes/no <!-- please update UPGRADE-*.md and src/**/CHANGELOG.md files -->
-| Issues        | Fix #... <!-- prefix each issue number with "Fix #", no need to create an issue if none exists, explain below instead -->
+| New feature?  | yes/no <!-- if yes, also update src/**/CHANGELOG.md -->
+| Deprecations? | yes/no <!-- if yes, also update UPGRADE-*.md and src/**/CHANGELOG.md -->
+| Issues        | Fix #... <!-- prefix each issue number with "Fix #"; no need to create an issue if none exists, explain below -->
 | License       | MIT
 
 <!--
-Replace this notice by a description of your feature/bugfix.
-This will help reviewers and should be a good start for the documentation.
+🛠️ Replace this text with a concise explanation of your change:
+- What it does and why it's needed
+- A simple example of how it works (include PHP, YAML, etc.)
+- If it modifies existing behavior, include a before/after comparison
 
-Additionally (see https://symfony.com/releases):
- - Always add tests and ensure they pass.
- - Bug fixes must be submitted against the lowest maintained branch where they apply
-   (lowest branches are regularly merged to upper ones so they get the fixes too).
- - Features and deprecations must be submitted against the latest branch.
- - For new features, provide some code snippets to help understand usage.
- - Changelog entry should follow https://symfony.com/doc/current/contributing/code/conventions.html#writing-a-changelog-entry
- - Never break backward compatibility (see https://symfony.com/bc).
+Contributor guidelines:
+- ✅ Add tests and ensure they pass
+- 🐞 Bug fixes must target the **lowest maintained** branch where they apply
+  https://symfony.com/releases#maintained-symfony-branches
+- ✨ New features and deprecations must target the **feature** branch
+  and must add an entry to the changelog file of the patched component:
+  https://symfony.com/doc/current/contributing/code/conventions.html#writing-a-changelog-entry
+- 🔒 Do not break backward compatibility:
+  https://symfony.com/bc
 -->

src/Symfony/Component/Notifier/Bridge/FakeSms/FakeSmsEmailTransport.php

@@ -11,7 +11,6 @@
 
 namespace Symfony\Component\Notifier\Bridge\FakeSms;
 
-use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 use Symfony\Component\Mailer\Exception\TransportExceptionInterface;
 use Symfony\Component\Mailer\MailerInterface;
 use Symfony\Component\Mime\Email;
@@ -20,6 +19,7 @@
 use Symfony\Component\Notifier\Message\SentMessage;
 use Symfony\Component\Notifier\Message\SmsMessage;
 use Symfony\Component\Notifier\Transport\AbstractTransport;
+use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
 use Symfony\Contracts\HttpClient\HttpClientInterface;
 
 /**

src/Symfony/Component/Notifier/Bridge/FakeSms/FakeSmsLoggerTransport.php

@@ -12,12 +12,12 @@
 namespace Symfony\Component\Notifier\Bridge\FakeSms;
 
 use Psr\Log\LoggerInterface;
-use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 use Symfony\Component\Notifier\Exception\UnsupportedMessageTypeException;
 use Symfony\Component\Notifier\Message\MessageInterface;
 use Symfony\Component\Notifier\Message\SentMessage;
 use Symfony\Component\Notifier\Message\SmsMessage;
 use Symfony\Component\Notifier\Transport\AbstractTransport;
+use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
 use Symfony\Contracts\HttpClient\HttpClientInterface;
 
 /**

src/Symfony/Component/Validator/Constraints/LocaleValidator.php

@@ -44,7 +44,7 @@ public function validate(mixed $value, Constraint $constraint): void
             $value = \Locale::canonicalize($value);
         }
 
-        if (!Locales::exists($value)) {
+        if (null === $value || !Locales::exists($value)) {
             $this->context->buildViolation($constraint->message)
                 ->setParameter('{{ value }}', $this->formatValue($inputValue))
                 ->setCode(Locale::NO_SUCH_LOCALE_ERROR)

src/Symfony/Component/Validator/Tests/Constraints/LocaleValidatorTest.php

@@ -91,6 +91,21 @@ public static function getInvalidLocales()
         ];
     }
 
+    public function testTooLongLocale()
+    {
+        $constraint = new Locale([
+            'message' => 'myMessage',
+        ]);
+
+        $locale = str_repeat('a', (\defined('INTL_MAX_LOCALE_LEN') ? \INTL_MAX_LOCALE_LEN : 85) + 1);
+        $this->validator->validate($locale, $constraint);
+
+        $this->buildViolation('myMessage')
+            ->setParameter('{{ value }}', '"' . $locale . '"')
+            ->setCode(Locale::NO_SUCH_LOCALE_ERROR)
+            ->assertRaised();
+    }
+
     /**
      * @dataProvider getUncanonicalizedLocales
      */