PVS-Studio warning V501 for Chromium

void JingleInfoRequest::OnResponse(....) {
  ...
  std::string host = server->Attr(buzz::QN_JINGLE_INFO_HOST);
  std::string port_str = server->Attr(buzz::QN_JINGLE_INFO_UDP);
  if (host != buzz::STR_EMPTY && host != buzz::STR_EMPTY) {
  ...
}

Most likely this is what should be written here: (host != buzz::STR_EMPTY && port_str != buzz::STR_EMPTY).

This suspicious code was found in Chromium project by PVS-Studio static code analyzer.
Warning message is:
V501 There are identical sub-expressions 'host != buzz::XmlConstants::str_empty ()' to the left and to the right of the '&&' operator.  chromoting_jingle_glue  iq_request.cc  248

PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/