Ticket #5911: 5911-18.diff

wp-admin/includes/media.php

@@ -451 +451 @@
 
                 $form_fields['post_content']['label'] = __('Long Description');
 
-                $thumb = wp_get_attachment_thumb_url();
+                $thumb = wp_get_attachment_thumb_url($post->ID);
 
                 $form_fields['align'] = array(
                         'label' => __('Alignment'),