From dc2843a2d76e35061aac2ca45cbc960124a5fd2a Mon Sep 17 00:00:00 2001
From: Qiang Xue <qiang.xue@gmail.com>
Date: Sun, 14 Jul 2013 19:03:43 -0400
Subject: [PATCH] Fixes #622.

---
 framework/yii/db/ActiveRecord.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/framework/yii/db/ActiveRecord.php b/framework/yii/db/ActiveRecord.php
index 7a11288..0b413fe 100644
--- a/framework/yii/db/ActiveRecord.php
+++ b/framework/yii/db/ActiveRecord.php
@@ -594,7 +594,7 @@ class ActiveRecord extends Model
 		if (isset($this->_attributes[$name], $this->_oldAttributes[$name])) {
 			return $this->_attributes[$name] !== $this->_oldAttributes[$name];
 		} else {
-			return isset($this->_attributes[$name]) || isset($this->_oldAttributes);
+			return isset($this->_attributes[$name]) || isset($this->_oldAttributes[$name]);
 		}
 	}
 
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