Dual-motor tailsitters

One question, with AP 4.2.1 and MP 1.3.75, what is the first WP? WP1 or WP2? Since I have updated from 4.1.1 to 4.2.1, it makes the back transition in the previous WP to HOME instead of in HOME

https://discuss.ardupilot.org/t/new-mission-design-method/77427