"Stopover/Open-jaw is permitted once for one city in the itinerary, and cannot be the same city of the point of origin or point of destination." Can someone explain the meaning of this statement added by CX in October 2023 to the rules for multi-carrier rewards? Does it mean " A stopover or open-jaw is permitted only once for any city in the itinerary, except that the origin or final destination cannot be a stopover or open-jaw?" If so, does this prohibit having a final destination that is different from the origin, because a final destination that is a different city from the origin but in the same country would result in an open-jaw?

This is the routing I would like to ticket: ORD - HKG (stopover), HKG - SIN (stopover), SIN - CMB (stopover), CMB - DEL (stopover), DEL - DOH (transit), DOH - CMN (stopover), CMN - DOH (transit), DOH - IAD. Is this not legal because the final flight to IAD instead of ORD makes this an open-jaw at the destination?