If I remember correctly, TurboTax does not handle this well. As the link that you posted pointed out, if you share the "dwelling unit", you are not able to claim a loss on the property.
It's kind of a funky work-around, but you can figure out the rental percentage of the house and tinker with the rental days and personal days to make it work out. For example, if the rental percentage is exactly 50% of the entire house, you could enter 180 rental days and 180 personal days. That would prorate things by that 50%, and it would also trigger the limitation rules.
