Charitable Deduction Limitation in TurboTax does not agree with IRS

This screen in TurboTax Premier 2020 states that the IRS limits donation deductions to 100% of AGI.  

That does not agree with Publication 526, and the IRS adjusted my return as a result.  They reduced my deduction to 60% of my AGI.  Seems like a pretty big miss.

I reported it to Support .... but am not confident anything will change.

I've been able to fudge the numbers in my desktop system to match the IRS, but I'm worried about getting my carryovers accurate next year.  Any thoughts?