path_redirect_load_by_source problem with same From but different language

Hi,

I have a problem with path redirect module. I created 2 redirects :

language : en | from : guided-tour | to : guided-tour/welcome
language : de | from : guided-tour | to : guided-tour/willkommen

I think that I detect the problem in the function path_redirect_load_by_source, in the 2 first lines :
$where = $query ? "(source = '%s' OR source LIKE '%s')" : "source = '%s'";
$args = ($query ? array($source, $source . '?%%') : array($source)) + array($language);

$language will be never concatenate to $args because $args already contains the first cell. The second should be :
$args = ($query ? array($source, $source . '?%%') : array($source)) + array(2 => $language);
or
$args = ($query ? array($source, $source . '?%%') : array($source));
$args[] = $language;