--- mantisbt-1.2.8/core/bugnote_api.php	2011-09-06 15:23:10.000000000 +0100
+++ mantis/core/bugnote_api.php	2012-04-24 11:20:37.794674092 +0100
@@ -484,7 +484,7 @@
  * @return bool
  * @access public
  */
-function bugnote_date_update( $p_bugnote_id ) {
+function bugnote_date_update( $p_bugnote_id, $p_bug_update=false ) {
 	$c_bugnote_id = db_prepare_int( $p_bugnote_id );
 	$t_bugnote_table = db_get_table( 'mantis_bugnote_table' );
 
@@ -493,6 +493,16 @@
 					WHERE id=" . db_param();
 	db_query_bound( $query, Array( db_now(), $c_bugnote_id ) );
 
+	if ( $p_bug_update ) {
+		$t_bug_id = bugnote_get_field( $p_bugnote_id, 'bug_id' );
+		$t_bug_table = db_get_table( 'mantis_bug_table' );
+
+		$query = "UPDATE $t_bug_table
+					SET last_updated=" . db_param() ."
+					WHERE id=" . db_param();
+		db_query_bound( $query, Array( db_now(), $t_bug_id ) );
+	}
+
 	# db_query errors if there was a problem so:
 	return true;
 }
@@ -527,7 +537,7 @@
 	db_query_bound( $query, Array( $p_bugnote_text, $t_bugnote_text_id ) );
 
 	# updated the last_updated date
-	bugnote_date_update( $p_bugnote_id );
+	bugnote_date_update( $p_bugnote_id, true );
 
 	# insert a new revision
 	$t_user_id = auth_get_current_user_id();