Description:
The search in comments feature doesn't work anymore.

Additional info:
This is what appears when searching for "foo" with "search in comments" enabled:

Query { SELECT t.*, lc.category_name AS category_name, (SELECT COUNT(c.comment_id) FROM `flyspray_comments` c WHERE c.task_id = t.task_id) AS num_comments, GREATEST((SELECT max(c.date_added) FROM `flyspray_comments` c WHERE c.task_id = t.task_id), t.date_opened, t.date_closed, t.last_edited_time) AS max_date, lvc.version_name AS closedby_version, COUNT(DISTINCT att.attachment_id) AS num_attachments, p.project_title, p.project_is_active, lst.status_name AS status_name, lt.tasktype_name AS task_type, lr.resolution_name FROM `flyspray_tasks` t LEFT JOIN `flyspray_projects` p ON t.project_id = p.project_id LEFT JOIN `flyspray_list_tasktype` lt ON t.task_type = lt.tasktype_id LEFT JOIN `flyspray_list_status` lst ON t.item_status = lst.status_id LEFT JOIN `flyspray_list_resolution` lr ON t.resolution_reason = lr.resolution_id LEFT JOIN `flyspray_list_category` lc ON t.product_category = lc.category_id LEFT JOIN `flyspray_list_version` lvc ON t.closedby_version = lvc.version_id LEFT JOIN `flyspray_attachments` att ON t.task_id = att.task_id LEFT JOIN `flyspray_assigned` ass ON t.task_id = ass.task_id LEFT JOIN `flyspray_users` u ON ass.user_id = u.user_id WHERE t.project_id = ? AND ( is_closed <> '1' ) AND ((t.item_summary LIKE ? OR t.task_id LIKE ? OR c.comment_text LIKE ?)) GROUP BY t.task_id ORDER BY task_severity desc, t.task_id desc, t.task_id ASC} with params {1,%foo%,%foo%,%foo%} Failed! (Unknown column 'c.comment_text' in 'where clause')


Steps to reproduce:
* go on bugs.archlinux.org
* select advanced search
* enable "search in comments"
* search anything