PVS-Studio warning V501 for VTK

void vtkPiecewiseControlPointsItem::SetControlPoint(
  vtkIdType index, double* newPos)
{
  double oldPos[4];
  this->PiecewiseFunction->GetNodeValue(index, oldPos);
  if (newPos[0] != oldPos[0] || newPos[1] != oldPos[1] ||
      newPos[2] != oldPos[2] || newPos[2] != oldPos[2])
    {
      this->PiecewiseFunction->SetNodeValue(index, newPos);
    }
}

A misprint. The last array items are not compared.

This suspicious code was found in VTK project by PVS-Studio static code analyzer.
Warning message is:
V501 There are identical sub-expressions 'newPos[2] != oldPos[2]' to the left and to the right of the '||' operator. vtkCharts vtkpiecewisecontrolpointsitem.cxx 129

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