C3D first request problem

With the iRule like this the error does not occur:

when CLIENTSSL_HANDSHAKE {
  if { [SSL::cert count] != 0 } {
    HTTP::release
  }
}

when HTTP_REQUEST {
    # Some tests to determine if IS_LOGIN_PAGE
    if { IS_LOGIN_PAGE }{
        HTTP::collect
        SSL::session invalidate
        SSL::authenticate always
        SSL::authenticate depth 9
        SSL::cert mode request
        SSL::renegotiate
    }
}

The only problem I've seen happens if the user cancels the select certificate dialog in the browser but that doesn't worry us a lot.