o Minor bugfixes (hidden service client):
    - When getting multiple SOCKS request for the same .onion address, don't
      trigger multiple descriptor fetches.
    - When the descriptor fetch fails with an internal error, no more HSDir to
      query or we aren't allowed to fetch (FetchHidServDescriptors 0), close
      all pending SOCKS request for that .onion. Fixes bug 23653; bugfix on
      0.3.2.1-alpha.