PVS-Studio warning V519 for WinSCP

int CFileZillaApi::Init(....)
{
  ....
  m_pMainThread->m_hOwnerWnd=m_hOwnerWnd;
  m_pMainThread->m_hOwnerWnd=m_hOwnerWnd;
  ....
}

This suspicious code was found in WinSCP project by PVS-Studio static code analyzer.
Warning message is:
V519 The 'm_pMainThread->m_hOwnerWnd' variable is assigned values twice successively. Perhaps this is a mistake. Check lines: 88, 89. filezillaapi.cpp 89

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/