CodeIgniter 1.7.0 Released

[eluser]orotone[/eluser]
I'm having problems with CI 1.7 and where it back-ticks in the database class. I now get incorrect SQL:

Code:

SELECT `i`.`vinvid`, `i`.`volume`, `i`.`page`, `i`.`sequence`,
  `v`.`title`, `v`.`price`, `v`.`pricekey`, `i`.`paper`,
  `i`.`condition`, `i`.`ebayprice`, `i`.`status`, `i`.`picture`
FROM (`volinv` i)
JOIN `newvolume` v ON `i`.`volume` = `v`.`volume` AND i.sequence = v.sequence
WHERE `i`.`status` = '1' AND `i`.`volume` = '13'
ORDER BY `volume,` sequence

Note that the parts of my tables/rows are not back-ticked after the AND in the JOIN and especially note that the back-ticks around the volume column in the ORDER BY statement are incorrectly around the comma, which causes the SQL to fail. All works fine and is correctly back-ticked in 1.6.3

Here's the code from the module:

Code:

function get_volume($volumeSearch)
    {
        if ($volumeSearch['status']){
            if($volumeSearch['status'] == 1){
                $this->db->where('i.status', $volumeSearch['status']);
            }
        }
        if (is_numeric($volumeSearch['vinvid'])){
            $this->db->where('i.vinvid', $volumeSearch['vinvid']);
        }
        if (is_numeric($volumeSearch['volume'])){
            $this->db->where('i.volume', $volumeSearch['volume']);
        }
        if ($volumeSearch['page']){
            $this->db->where('i.page', $volumeSearch['page']);
        }
        if ($volumeSearch['sequence']){
            $this->db->where('i.sequence', $volumeSearch['sequence']);
        }
        if ($volumeSearch['title']){
            $this->db->like('v.title', $volumeSearch['title']);
        }

        $this->db->select('i.vinvid, i.volume, i.page, i.sequence');
        $this->db->select('v.title, v.price, v.pricekey, i.paper, i.condition');
        $this->db->select('i.ebayprice, i.status, i.picture');
        $this->db->from('volinv i');
        $this->db->join('newvolume v', 'i.volume = v.volume AND i.sequence = v.sequence');
        if ($volumeSearch['invord'] == 1){
            $this->db->order_by('vinvid');
        }else{
            $this->db->order_by('volume, sequence');
        }

        return $this->db->get();

    }

Perhaps I'm doing something wrong--I'm an old C and SQL programmer and not so used to the Active Record stuff.
Thanks!