PVS-Studio warning V575 for WinSCP

TForm * __fastcall TMessageForm::Create(....)
{
  ....
  LOGFONT AFont;
  ....
  memset(&AFont, sizeof(AFont), 0);
  ....
}

This suspicious code was found in WinSCP project by PVS-Studio static code analyzer.
Warning message is:
V575 The 'memset' function processes '0' elements. Inspect the third argument. messagedlg.cpp 786

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/