Ticket #29902: comments_orderby.diff

wp-includes/comment.php

@@ -511 +511 @@
                 if ( $groupby ) {
                         $groupby = 'GROUP BY ' . $groupby;
                 }
-                $query = "SELECT $fields FROM $wpdb->comments $join WHERE $where $groupby ORDER BY $orderby $order $limits";
+                if ( $orderby ) {
+                        $orderby = 'ORDER BY ' . $orderby;
+                }
+                $query = "SELECT $fields FROM $wpdb->comments $join WHERE $where $groupby $orderby $order $limits";
 
                 if ( $this->query_vars['count'] ) {
                         return $wpdb->get_var( $query );