Ticket #5911: 5911-5.diff

wp-admin/edit-attachment-rows.php

@@ -47 +47 @@
         case 'media':
                 ?>
                 <td><strong><a href="# TODO: upload.php?action=edit&amp;post=<?php the_ID(); ?>"><?php the_title(); ?></a></strong><br />
-                <?php echo strtoupper(preg_replace('/^.*?\.(\w+)$/', '$1', $post->guid)); ?>
+                <?php echo strtoupper(preg_replace('/^.*?\.(\w+)$/', '$1', get_attached_file($post->ID))); ?>
                 <?php do_action('manage_media_media_column', $post->ID); ?>
                 </td>
                 <?php