Redirect after form submit with file upload

Hi,

I excuse my self if this has been allready asked, i just spent the three last hours searching and couldn't find an answer, so here it goes.

I need to redirect after form submit to a particular node so i pass the id to form on the URL as a $_GET['n'].
Then I use HOOK_form_FORM_ID_alter() to add the name of a custom function to the $form['actions']['submit']['#submit'] that is called after submit and it works in all forms... except those having a file upload on it.

I believe, correct me if i'm wrong, that when uploading a file either the call sequence of hooks is different or the redirections are blocked for some reason.

Here is the code example for two forms (first works the second don't):

/* FORM WITHOUT ANY FILE UPLOAD */
function mymodule_form_titre_node_form_alter(&$form, &$form_state,$form_id){	
	if (isset($_GET['n']) && $node = node_load($_GET['n']) )
	{
             $form['actions']['submit']['#submit'][] = 'appelem_form_finish_redirect';
	}
}

/* FORM WITH A FILE UPLOAD */
function mymodule_form_logo_node_form_alter(&$form, &$form_state,$form_id){

	if (isset($_GET['n']) && $node = node_load($_GET['n']) )
	{
            $form['actions']['submit']['#submit'][] = 'mymodule_form_finish_redirect';
	}
}


function mymodule_form_finish_redirect($form, &$form_state) { 
/* REDIRECT TO PAGE  AFTER CREATING THE NODE */
	if (isset($_GET['n']) && $node = node_load($_GET['n']) )
	{
  	     $form_state['redirect'] = 'node/'.$node->nid;
	}
} 

Can you please help me to get redirections to work on forms with file uploads ?

Thanks !