PVS-Studio warning V517 for Geant4

void G4Polyhedra::Create( G4double phiStart,
                          G4double phiTotal,
                          G4int    theNumSide,
                          G4ReduciblePolygon *rz  )
{
  ....
  G4double rzArea = rz->Area();
  if (rzArea < -kCarTolerance)
    rz->ReverseOrder();

  else if (rzArea < -kCarTolerance)
  {
    G4cerr << "ERROR - G4Polyhedra::Create() "
           << GetName() << G4endl
           << "        R/Z cross section is zero or near zero: "
           << rzArea << G4endl;
    G4Exception("G4Polyhedra::Create()", "InvalidSetup",
                FatalException, "Illegal input parameters.");
  }
  ....
}

This suspicious code was found in Geant4 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: 209, 212. G4specsolids g4polyhedra.cc 209

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