db_rewrite_sql() not rewriting sql as expected

Hi,

I'm trying to implement db_rewrite_sql() on all my sql queries that list nodes in the faq module so as to properly support i18n localization. It all works correctly when viewing the FAQ page and nodes but the list of nodes which appears on the faq weighting settings page is not correct. The problem is the query is not being rewritten with the left join on the i18n table. However, when I copy the query to a different function it is rewritten. The query is being run in faq_weight_settings_form() in the 2nd part of a multi-part form. The call is below:

$result = db_query(db_rewrite_sql("SELECT n.nid, n.title, if((w.weight IS NULL), 0, w.weight) as weight FROM {node} n LEFT JOIN {faq_weights} w ON n.nid = w.nid AND w.tid = %d WHERE n.type='faq' AND n.status = 1 ORDER BY weight ASC, n.sticky DESC, n.created DESC", "n", "nid"), $category);

I'm wondering if it's not being rewritten because it's in a form function? If anyone wants to try it out for themselves, just checkout HEAD from CVS for the faq module.

All help is appreciated!

Cheers,
Stella