fixed obvious error

diff --git a/includes/PageHistory.php b/includes/PageHistory.php
index f06bf62..d4a87cd 100644 (file)
--- a/includes/PageHistory.php
+++ b/includes/PageHistory.php
@@ -395,10 +395,10 @@ class PageHistory {
 
                $n = $dbr->numRows( $res );
                $last = null;
-               while( $obj = $db->fetchObject( $res ) ) {
+               while( $obj = $dbr->fetchObject( $res ) ) {
                        $last = $obj->rev_timestamp;
                }
-               $db->freeResult( $res );
+               $dbr->freeResult( $res );
                return $last;
        }