Polylang Multilang comment

I’m trying to display comment from a post in english inside one who is in french.

$langage = get_locale();
if($langage =="fr_FR"){
$slug='en';
}else{
$slug='fr';
		}
$leid = $post->ID;
					$leidt = pll_get_post($leid,$slug);
					$comments = get_comments(array('post_id' => $leidt,'status' => 'approve','lang' => 'en,fr'));

Unfortunaly nothing happening, i try replacing the $leidt by the post id, still nothing. but if i take the id of a post with the same lang the comment are returned correctly. Any idea how to disable filter ?