PVS-Studio warning V678 for Shareaza

void CDownloadWithSources::MergeMetadata(
  const CXMLElement* pXML)
{
  CQuickLock pLock( Transfers.m_pSection );

  CXMLAttribute* pAttr1 =
    m_pXML->GetAttribute(CXMLAttribute::schemaName);
  CXMLAttribute* pAttr2 =
    pXML->GetAttribute(CXMLAttribute::schemaName);

  if (pAttr1 && pAttr2 &&
      !pAttr1->GetValue().CompareNoCase(pAttr1->GetValue()))
    ....
}

This suspicious code was found in Shareaza project by PVS-Studio static code analyzer.
Warning message is:
V678 An object is used as an argument to its own method. Consider checking the first actual argument of the 'CompareNoCase' function. downloadwithsources.cpp 1281

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/