I'm sure once the instructions get out of Draft form they'll fix this.  Intuit ALWAYS follows the form instructions, right!  Starting with the last full sentence on page 3:

https://www.irs.gov/pub/irs-dft/i8949--dft.pdf

Enter the name of the
broker followed by the words “see
attached statement” in column (a). Leave
columns (b) and (c) blank.