PVS-Studio warning V517 for Quake3

void CMainFrame::OnClipSelected()
{
  ...
  if (g_bPatchBendMode)
    Patch_BendHandleENTER();
  else if (g_bPatchBendMode)
    Patch_InsDelHandleENTER();
  ...
}

This suspicious code was found in Quake3 project by PVS-Studio static code analyzer.
Warning message is:
V517 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 3333, 3335. Radiant mainfrm.cpp 3333

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/