I'm taking 4 circles and constructing a cylinder. The cylinder is the center of a long shaft so I can't get all the way around the part: I have to use two tip angles.
I checked some things and the change went into 2020R2 SP9, 2021.1 SP4, 2021.2 and higher.
I agree that it would not work in 2020R2 first build. The default would have been [1..1].