- Constantine Sapuntzakis filed bug report #2042440

  (http://curl.haxx.se/bug/view.cgi?id=2042440) with a patch. He identified a
  problem when using NTLM over a proxy but the end-point does Basic, and then
  libcurl would do wrong when the host sent "Connection: close" as the proxy's
  NTLM state was erroneously cleared.