From ff1db8ece801f74872ee18219e4960261bebf096 Mon Sep 17 00:00:00 2001
From: Matias Griese <matias@kunena.org>
Date: Thu, 30 Oct 2014 15:35:14 +0200
Subject: [PATCH] Improve cached configuration check

---
 system/src/Grav/Common/Config/Config.php | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/system/src/Grav/Common/Config/Config.php b/system/src/Grav/Common/Config/Config.php
index 1b0147de2..a93eb63e5 100644
--- a/system/src/Grav/Common/Config/Config.php
+++ b/system/src/Grav/Common/Config/Config.php
@@ -236,8 +236,8 @@ class Config extends Data
         // Load real file if cache isn't up to date (or is invalid).
         if (
             !is_array($cache)
-            || empty($cache['checksum'])
-            || empty($cache['@class'])
+            || !isset($cache['checksum'])
+            || !isset($cache['@class'])
             || $cache['checksum'] != $checksum
             || $cache['@class'] != $class
         ) {
@@ -283,8 +283,8 @@ class Config extends Data
         // Load real file if cache isn't up to date (or is invalid).
         if (
             !is_array($cache)
-            || empty($cache['checksum'])
-            || empty($cache['@class'])
+            || !isset($cache['checksum'])
+            || !isset($cache['@class'])
             || $cache['checksum'] != $checksum
             || $cache['@class'] != $class
         ) {