Not too sure what’s so special about this deal. It’s been around for a few months now. The Fare rule is the same this other thread made in back in July . INN7T1S4

https://www.flyertalk.com/forum/34425335-post1.html

and what’s the big deal about QR BUD-DOH, how does it even relate to this deal ? The price fare is to break with QR