From c618153cb17b62bf52473c1eddb5fccee0b039f5 Mon Sep 17 00:00:00 2001
From: Seamus Lee <seamuslee001@gmail.com>
Date: Mon, 12 Jun 2017 08:08:21 +1000
Subject: [PATCH] Allow for value to be a string '0'

---
 Civi/Core/SettingsBag.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Civi/Core/SettingsBag.php b/Civi/Core/SettingsBag.php
index b117309796..1428949924 100644
--- a/Civi/Core/SettingsBag.php
+++ b/Civi/Core/SettingsBag.php
@@ -352,7 +352,7 @@ class SettingsBag {
     }
     $dao->find(TRUE);
 
-    if (isset($metadata['on_change']) && !($value === 0 && ($dao->value === NULL || unserialize($dao->value) === 0))) {
+    if (isset($metadata['on_change']) && !($value == 0 && ($dao->value === NULL || unserialize($dao->value) == 0))) {
       foreach ($metadata['on_change'] as $callback) {
         call_user_func(
           \Civi\Core\Resolver::singleton()->get($callback),
-- 
2.25.1