From fbfc86fc22b4df0c636b05e5ce5da0b548fd5b08 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Till=20Kru=CC=88ss?= <till@kruss.io>
Date: Sun, 27 Sep 2020 19:40:03 -0700
Subject: [PATCH] revert #273; it breaks multisite keys

---
 includes/object-cache.php | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/includes/object-cache.php b/includes/object-cache.php
index 8074e796..245206d7 100644
--- a/includes/object-cache.php
+++ b/includes/object-cache.php
@@ -1779,18 +1779,10 @@ function ( $keys ) {
      * @return  string
      */
     public function build_key( $key, $group = 'default' ) {
-        static $keys = [];
-
         if ( empty( $group ) ) {
             $group = 'default';
         }
 
-        $key_index = "{$key}:{$group}";
-
-        if ( isset( $keys[ $key_index ] ) ) {
-            return $keys[ $key_index ];
-        }
-
         $salt = defined( 'WP_REDIS_PREFIX' ) ? trim( WP_REDIS_PREFIX ) : '';
         $prefix = $this->is_global_group( $group ) ? $this->global_prefix : $this->blog_prefix;
 
@@ -1799,7 +1791,7 @@ public function build_key( $key, $group = 'default' ) {
 
         $prefix = trim( $prefix, '_-:$' );
 
-        return $keys[ $key_index ] = "{$salt}{$prefix}:{$group}:{$key}";
+        return "{$salt}{$prefix}:{$group}:{$key}";
     }
 
     /**