Form 8958 - Section 11 - Taxes Withheld. Automatically filled out as "from Form 1040, line 17" but the value appears to be pulled from Form 1040, line 25a OR 25d. I haven't done the research to make clear which makes more sense, but it's also non-editable of a descriptor which means it's more confusing when you look to see where the info is coming from.
