title: Reading the final name of a file downloaded using QNetworkAccessManager
body: <p>When downloading a file using QNetworkAccessManager (Qt 4.5.2) is possible that the original URL redirects to a new one containing the real name of the file downloaded. How this file name can  be read?</p>
  
  <p>The answer should be QUrl QNetworkReply::url () const as the documentation says that: 
  Note that the URL may be different from that of the original request.</p>
  
  <p>Unfortunately it returns the original URL and not the new one.</p>
  
  <p>Any idea?   </p>