--- mantis.old/core/bugnote_api.php	2011-07-26 16:49:10.000000000 +0300
+++ mantis/core/bugnote_api.php	2011-08-10 09:33:16.000000000 +0300
@@ -614,7 +614,7 @@
 				WHERE u.id = bn.reporter_id AND bn.time_tracking != 0 AND
 				bn.bug_id = '$c_bug_id'
 				$t_from_where $t_to_where
-				GROUP BY u.id, u.username";
+				GROUP BY u.id, u.username, u.realname";
 
 	$result = db_query( $query );
 
@@ -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 );