nahhh...just uninformed programmers.
They have a bunch of other uncommon selections in parts of the software that are "common" but labelled "uncommon".
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At least you didn't ask the ridiculous question about whether yesterdays executive action means you don't have to pay a penalty for not having health insurance during 2016.....and why it hasn't been programmed in yet.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*