+ // mvo: we don't really need the last-modified header here
+ // 1) it points to "Final" and that was renamed to "DestFile"
+ // so it's never send anyway
+ // 2) because DestFIle is in partial/ we will send a partial request
+ // with if-range in the http method (or the equivalent for ftp).
+ // that should give the same result
+