From a5c711d6a3c8d4d9ba519ed40f9813e7d130c8ac Mon Sep 17 00:00:00 2001
From: Rick Ellis <rick.ellis@ellislab.com>
Date: Sun, 19 Oct 2008 01:33:04 +0000
Subject: Fixed a bug in which NULL values were not being preserved

---
 system/libraries/Model.php | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'system')

diff --git a/system/libraries/Model.php b/system/libraries/Model.php
index 3b5123fe4..1d3cbdfa0 100644
--- a/system/libraries/Model.php
+++ b/system/libraries/Model.php
@@ -65,8 +65,7 @@ class Model {
 				// problems so we'll conditionally use them
 				if ($use_reference == TRUE)
 				{
-					// Needed to prevent reference errors with some configurations
-					$this->$key = '';
+					$this->$key = NULL; // Needed to prevent reference errors with some configurations
 					$this->$key =& $CI->$key;
 				}
 				else
-- 
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