From 9d3180a7e23cedc63fbf269c1227ce9bbe3e3005 Mon Sep 17 00:00:00 2001
From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Wed, 30 Jan 2019 09:41:20 +0100
Subject: [PATCH] [Config] ensure moving away from Serializable wont break
 cache:clear

---
 src/Symfony/Component/Config/ResourceCheckerConfigCache.php | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/Symfony/Component/Config/ResourceCheckerConfigCache.php b/src/Symfony/Component/Config/ResourceCheckerConfigCache.php
index 933cf0f9c7b8..092b95bf0188 100644
--- a/src/Symfony/Component/Config/ResourceCheckerConfigCache.php
+++ b/src/Symfony/Component/Config/ResourceCheckerConfigCache.php
@@ -156,10 +156,11 @@ private function safelyUnserialize($file)
     {
         $e = null;
         $meta = false;
+        $content = file_get_contents($file);
         $signalingException = new \UnexpectedValueException();
         $prevUnserializeHandler = ini_set('unserialize_callback_func', '');
         $prevErrorHandler = set_error_handler(function ($type, $msg, $file, $line, $context = []) use (&$prevErrorHandler, $signalingException) {
-            if (E_WARNING === $type && 'Class __PHP_Incomplete_Class has no unserializer' === $msg) {
+            if (__FILE__ === $file) {
                 throw $signalingException;
             }
 
@@ -167,7 +168,7 @@ private function safelyUnserialize($file)
         });
 
         try {
-            $meta = unserialize(file_get_contents($file));
+            $meta = unserialize($content);
         } catch (\Error $e) {
         } catch (\Exception $e) {
         }