Index: branches/unlabeled/unlabeled-1.26.2/core/kernel/db/dbitem.php
===================================================================
diff -u -r5439 -r5731
--- branches/unlabeled/unlabeled-1.26.2/core/kernel/db/dbitem.php	(.../dbitem.php)	(revision 5439)
+++ branches/unlabeled/unlabeled-1.26.2/core/kernel/db/dbitem.php	(.../dbitem.php)	(revision 5731)
@@ -229,7 +229,12 @@
 		$ret = '';
 		foreach($keys_hash as $field => $value)
 		{
-			$ret .= '(`'.$this->TableName.'`.'.$field.' = '.$this->Conn->qstr($value).') AND ';
+			if (!preg_match('/\./', $field)) {
+				$ret .= '(`'.$this->TableName.'`.'.$field.' = '.$this->Conn->qstr($value).') AND ';
+			}
+			else {
+				$ret .= '('.$field.' = '.$this->Conn->qstr($value).') AND ';
+			}
 		}
 
 		return preg_replace('/(.*) AND $/', '\\1', $ret);