From 03587989eaaac09646fefea386009225b0e447bd Mon Sep 17 00:00:00 2001
From: Andrew Nicols <andrew@nicols.co.uk>
Date: Thu, 2 Aug 2018 10:59:53 +0800
Subject: [PATCH] MDL-63050 cachestore_redis: Update hExists to check empty

---
 cache/stores/redis/lib.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cache/stores/redis/lib.php b/cache/stores/redis/lib.php
index bcf56fddbbf..83a58892e5b 100644
--- a/cache/stores/redis/lib.php
+++ b/cache/stores/redis/lib.php
@@ -325,7 +325,7 @@ class cachestore_redis extends cache_store implements cache_is_key_aware, cache_
      * @return bool True if the key exists, false if it does not.
      */
     public function has($key) {
-        return $this->redis->hExists($this->hash, $key);
+        return !empty($this->redis->hExists($this->hash, $key));
     }
 
     /**