Ticket #23408: 23408.patch

wp-includes/link-template.php

@@ -485 +485 @@
                 $type = get_post_field('post_type', $post_id);
                 if ( 'page' == $type )
                         $url = add_query_arg( array( 'feed' => $feed, 'page_id' => $post_id ), home_url( '/' ) );
+                elseif ( 'attachment' == $type )
+                        $url = add_query_arg( array( 'feed' => $feed, 'attachment_id' => $post_id ), home_url( '/' ) );
                 else
                         $url = add_query_arg( array( 'feed' => $feed, 'p' => $post_id ), home_url( '/' ) );
         }