The problem is that there is currently no way of retrieving the OutsideValue used by the BoudingObjectCutter when using SetAutoOutsideValue(true). The current code does something like

TOutputPixel outsideValue;
if(cutter->m_AutoOutsideValue)
{
  outsideValue = itk::NumericTraits<TOutputPixel>::min();
}
else
{
  outsideValue = (TOutputPixel) cutter->m_OutsideValue;
}

As you can see, the outside value used is computed from itk::NumericTraits<> but is never assigned to m_OutsideValue. Therefore, the method GetOutsideValue() doesn't return the correct value.