Merge branch '7.4' into 8.0

* 7.4:
  [DependencyInjection][Routing] Fix nested config imports when returning PHP arrays
  fix compatibility with Relay 0.12.1
  [TypeInfo] Fix resolving use statements with line breaks
  [FrameworkBundle] Fix normalization of enums in workflow transitions
  Add missing return type for docblock Closure
  don't use a fixed date fixture when assertions depend on relative times
  [FrameworkBundle] Fix secrets:encrypt-from-local
  [Security] Add support for `Sec-Fetch-Site` to `SameOriginCsrfTokenManager`
  [Console] Optimize mostRecentlyEnteredValue() method
  [HttpClient] Add QUERY to the list of retriable HTTP methods
  Update regular expression in URL validator
  [AssetMapper] Fix parsing @import that don't use url()
  [Messenger] Add retry delay on amazon sqs
  [Serializer] CsvEncoder to escape values starting with line feed when escape formulas is enabled

Author: nicolas-grekas

Helper/QuestionHelper.php

@@ -379,12 +379,13 @@ private function mostRecentlyEnteredValue(string $entered): string
             return $entered;
         }
 
-        $choices = explode(',', $entered);
-        if ('' !== $lastChoice = trim($choices[\count($choices) - 1])) {
-            return $lastChoice;
+        if (false === $lastCommaPos = strrpos($entered, ',')) {
+            return $entered;
         }
 
-        return $entered;
+        $lastChoice = trim(substr($entered, $lastCommaPos + 1));
+
+        return '' !== $lastChoice ? $lastChoice : $entered;
     }
 
     /**