Ticket #49852: 49852.patch

383,388d382
<               $attachment_id = $post->ID;
< 
<               if($mime == 'video'){
<                       $attachment_id = get_post_thumbnail_id($post->ID);
<               }
< 
390c384
<               $thumb      = wp_get_attachment_image( $attachment_id, 'array( 60, 60 )', true, array( 'alt' => '' ) ); //i changed this line to $attachment_id
---
>               $thumb      = wp_get_attachment_image( $post->ID, array( 60, 60 ), true, array( 'alt' => '' ) );