[development] possible bug in FAPI 5.6 (query string killed)

I'm trying to have a form that has a query string other than q/clean path. eg. $form['#action'] = url($_GET['q'],$query); going somewhere like /obj/action/?id=37 Avoiding to specify #action doesn't pass the additional query string. $form['#action'] = url($_GET['q'], drupal_query_string_encode($_GET,Array('q'))); This put in the <form action what I'd expect but later browser get redirected to the path without the additional query. So somehow it is impossible to pass a non positional parameter. whatever is returned from add_item_form_submit get encoded. Am I missing something? Is there a way to handle non positional parameters? thx -- Ivan Sergio Borgonovo http://www.webthatworks.it