TurboTax can only go by what you tell it.
The 1099-B for the second sale undoubtedly reports a covered short term sale so you enter the sale, initially, in exactly that fashion. After entering the (wrong) date of acquisition, the (wrong) basis and the (wrong) sales category, using the 1099-B, you then click on the blue "I'll enter additional info on my own" button. On the next page you enter the correct basis and the correct holding period.
That makes the sale a Box D sale with codes B and T in column (f) of the Form 8949, showing the correct gain or loss.
Tom Young
