Merge branch '3.4' into 4.1

* 3.4: (21 commits)
  Added the Code of Conduct file
  do not override custom access decision configs
  [Security] Do not deauthenticate user when the first refreshed user has changed
  invalidate stale commits for PRs too
  add missing cache prefix seed attribute to XSD
  fix command description
  Fix class documentation
  [Validator] Add a missing translation
  [FrameworkBundle] Fix 3.4 tests
  [DI] fix dumping inline services again
  Fix phpdocs
  [EventDispatcher] Remove template method in test case
  Added LB translation for #27993 (UUID validator message translation)
  Replace deprecated validateValue with validate
  [FWBundle] Automatically enable PropertyInfo when using Flex
  [Process] fix locking of pipe files on Windows
  Correct PHPDoc type for float ttl
  bumped Symfony version to 3.4.18
  updated VERSION for 3.4.17
  updated CHANGELOG for 3.4.17
  ...

Author: nicolas-grekas

Extension/Core/DataTransformer/DateTimeToRfc3339Transformer.php

@@ -68,7 +68,7 @@ public function reverseTransform($rfc3339)
             return;
         }
 
-        if (!preg_match('/^(\d{4})-(\d{2})-(\d{2})T\d{2}:\d{2}(?::\d{2})?(?:\.\d)?(?:Z|(?:(?:\+|-)\d{2}:\d{2}))$/', $rfc3339, $matches)) {
+        if (!preg_match('/^(\d{4})-(\d{2})-(\d{2})T\d{2}:\d{2}(?::\d{2})?(?:\.\d+)?(?:Z|(?:(?:\+|-)\d{2}:\d{2}))$/', $rfc3339, $matches)) {
             throw new TransformationFailedException(sprintf('The date "%s" is not a valid date.', $rfc3339));
         }
 

Tests/Extension/Core/DataTransformer/DateTimeToRfc3339TransformerTest.php

@@ -67,6 +67,7 @@ public function reverseTransformProvider()
             array('UTC', 'UTC', '2010-02-03 04:05:00 UTC', '2010-02-03T04:05Z'),
             array('America/New_York', 'Asia/Hong_Kong', '2010-02-03 04:05:00 America/New_York', '2010-02-03T17:05+08:00'),
             array('Europe/Amsterdam', 'Europe/Amsterdam', '2013-08-21 10:30:00 Europe/Amsterdam', '2013-08-21T08:30:00Z'),
+            array('UTC', 'UTC', '2018-10-03T10:00:00.000Z', '2018-10-03T10:00:00.000Z'),
         ));
     }