diff -urN mantis.old/core/bugnote_api.php mantis.new/core/bugnote_api.php
--- mantis.old/core/bugnote_api.php     2011-07-26 16:49:10.000000000 +0300
+++ mantis.new/core/bugnote_api.php     2011-08-09 22:34:25.000000000 +0300
@@ -675,7 +675,7 @@
                        FROM $t_user_table u, $t_bugnote_table bn, $t_bug_table b
                        WHERE u.id = bn.reporter_id AND bn.time_tracking != 0 AND bn.bug_id = b.id
                        $t_project_where $t_from_where $t_to_where
-                       GROUP BY bn.bug_id, u.id, u.username, b.summary
+                       GROUP BY bn.bug_id, u.id, u.username, b.summary, u.realname
                        ORDER BY bn.bug_id";
 
        $result = db_query( $query );