Ticket #18310: 18310.diff

post.php

@@ -3722 +3722 @@
                 $post_name = sanitize_title($post_title, $post_ID);
                 $wpdb->update( $wpdb->posts, compact("post_name"), array( 'ID' => $post_ID ) );
         }
+        
+        // Set GUID
+        if ( ! isset($guid) )
+                $wpdb->update ( $wpdb->posts, arrray( 'guid' => get_permalink( $post_ID ) ), array( 'ID' => $post_ID ) );
 
         wp_set_post_categories($post_ID, $post_category);