Forms using AJAX callbacks won't work with Botcha enabled.

Error generated here in ajax_get_form() in ajax.inc:

  // Get the form from the cache.
  $form = form_get_cache($form_build_id, $form_state);
  if (!$form) {
    // If $form cannot be loaded from the cache, the form_build_id in $_POST
    // must be invalid, which means that someone performed a POST request onto
    // system/ajax without actually viewing the concerned form in the browser.
    // This is likely a hacking attempt as it never happens under normal
    // circumstances, so we just do nothing.
    watchdog('ajax', 'Invalid form POST data.', array(), WATCHDOG_WARNING);
    drupal_exit();
  }

Well, of course, forcing $form_state['no_cache'] = FALSE; for the form using AJAX will fix the problem, but I have no clue what it implies in the logic behind the module.

Changing title