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Upgraded 1.4.5 site to 1.4.10 to find that clicking a column in a list view fails to sort by it. Same thing occurs on initial load of the list view.
Line 336 of ./modules/fuel/models/base_module_model.php contains:
if (!empty($col)) $this->db->order_by($this->db->escape($col), $this->db->escape($order), FALSE);
It seems the escape function is tagging the query's SORT BY inside (') string quotes rather than (`) field quotes
Swapping the line back to a previous version seem to fix it
if (!empty($col)) $this->db->order_by($col, $order, FALSE);