Homebuyer Credit Repayment?

I noticed the 2008 Homebuyer credit being mentioned in the other not common items. As i clicked through, it's asking for repayment. However, the IRS website says it only needed to be repaid if my primary home situation changed within 36 months. Need some input here.

Reminder Homes purchased after 2008. If you purchased your home after 2008, and you owned it and used it as your main home for at least 36 months beginning on the purchase date, you don't have to repay any of the credit or file Form 5405.

Why haven't I heard of this before through turbo tax