I currently have an award flight booked for Qsuites MLE-DOH-SFO. I see that the MLE-DOH portion now has first class available for 40k points, but only for that segment; there’s no more biz class availability on the DOH-SFO leg so I can’t just rebook. If I book the first class flight as a separate award ticket but keep my original flight that has all legs in business, will I run into problems since the MLE-DOH has me holding two tickets?