doesn't work on PHP 5.3: 'expected to be a reference, value given' warnings

This fails on PHP 5.3 because call_user_func_array() has changed its behaviour.

    $drupal_execute_params = array_merge(array($stored_form_id, $stored_form_state), $stored_form_params);
    call_user_func_array('drupal_execute', $drupal_execute_params);

It produces a warning, though doesn't actually call the function -- so drupal_execute() is not called, the form is not submitted, and nothing happens.

The fix, found at http://stackoverflow.com/questions/2045875/pass-by-reference-problem-wit..., http://www.arthurrichards.net/node/19 and other places, is to pass by reference, just as is now supposedly deprecated! O_o

Hence:

    $drupal_execute_params = array_merge(array(&$stored_form_id, &$stored_form_state), $stored_form_params);
    call_user_func_array('drupal_execute', $drupal_execute_params);

This doesn't break PHP 5.2, fortunately!