Index: wp-admin/edit-form-advanced.php
===================================================================
--- wp-admin/edit-form-advanced.php	(revision 19183)
+++ wp-admin/edit-form-advanced.php	(working copy)
@@ -292,7 +292,7 @@
 </div>
 <div class="inside">
 <?php
-$sample_permalink_html = $post_type_object->public ? get_sample_permalink_html($post->ID) : '';
+$sample_permalink_html = $post_type_object->public ? urldecode( get_sample_permalink_html( $post->ID ) ) : '';
 $shortlink = wp_get_shortlink($post->ID, 'post');
 if ( !empty($shortlink) )
     $sample_permalink_html .= '<input id="shortlink" type="hidden" value="' . esc_attr($shortlink) . '" /><a href="#" class="button" onclick="prompt(&#39;URL:&#39;, jQuery(\'#shortlink\').val()); return false;">' . __('Get Shortlink') . '</a>';