From 380fb0afe9e64abb7c22488859e4bdc5cb50e443 Mon Sep 17 00:00:00 2001
From: Thomas Gelf <thomas@gelf.net>
Date: Mon, 10 Oct 2016 19:15:34 +0000
Subject: [PATCH] GroupMembershipCache: add missing property

fixes #12884
---
 library/Director/Db/Cache/GroupMembershipCache.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/library/Director/Db/Cache/GroupMembershipCache.php b/library/Director/Db/Cache/GroupMembershipCache.php
index 5f5d0b50..2154de29 100644
--- a/library/Director/Db/Cache/GroupMembershipCache.php
+++ b/library/Director/Db/Cache/GroupMembershipCache.php
@@ -15,6 +15,8 @@ class GroupMembershipCache
 
     protected $memberships;
 
+    protected $membershipsById;
+
     /** @var Db Director database connection */
     protected $connection;
 
@@ -33,7 +35,7 @@ class GroupMembershipCache
     protected function loadAllMemberships()
     {
         $db = $this->connection->getDbAdapter();
-        $this->memberships = array();
+        $this->memberships = $this->membershipsById = array();
 
         $type  = $this->type;
         $table = $this->table;