query helper methods and transactions

hi

the query helper methods insert_id and affected_rows return 0 after a transaction that contains a update and insert

i mention that the transaction is successful because it inserts the data without any problems

is this a bug or i'm missing something ?

my code is like this

PHP Code:

$this->db->trans_start();
$this->db->query('update query here');
$this->db->query('insert query here');
$this->db->trans_complete();

if ($this->db->trans_status() !== FALSE)
{
    echo $this->db->insert_id();
    echo $this->db->affected_rows();
}