From 4f468a50ad46be49aa635ca44c45bf8fc8af9910 Mon Sep 17 00:00:00 2001
From: eileen <emcnaughton@wikimedia.org>
Date: Thu, 6 Sep 2018 16:04:05 +1200
Subject: [PATCH] Fix caching to not treat an empty array as a cache miss.

Only NULL is a cache miss....
---
 CRM/Core/PseudoConstant.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CRM/Core/PseudoConstant.php b/CRM/Core/PseudoConstant.php
index 5cef5e081e..c22ec91e29 100644
--- a/CRM/Core/PseudoConstant.php
+++ b/CRM/Core/PseudoConstant.php
@@ -539,7 +539,7 @@ class CRM_Core_PseudoConstant {
     $cacheKey = CRM_Core_BAO_Cache::cleanKey("CRM_PC_{$name}_{$all}_{$key}_{$retrieve}_{$filter}_{$condition}_{$orderby}");
     $cache = CRM_Utils_Cache::singleton();
     $var = $cache->get($cacheKey);
-    if ($var && empty($force)) {
+    if ($var !== NULL && empty($force)) {
       return $var;
     }
 
-- 
2.25.1