Get thumbnail when saving draft

// Add actions to save video thumbnails when saving Draft
add_action(‘save_post’, ‘save_draft_video_thumbnail’, 100, 1);

function save_draft_video_thumbnail($post_id) {
$postdata = get_postdata($post_id);
if ($postdata[‘post_status’] == ‘draft’) {
get_video_thumbnail( $post_id );
}
}

Not work in wordpress 3.8.1…

it works in WordPress 3.6.1

i’ve just added this code inside the plugin editor,
before the line with

// Class

thanks a lot !