As far as I know, only one stopover is allowed in any one city during a *RTW-trip.

Is the following combination allowed: ....-PEK - BKK (stopover) - HAN (overland to BKK) then BKK - SIN - ....

In short, does the overland leg from HAN to BKK count as stopover in HAN, in BKK or in both (should it count as stopover in BKK, I assume it would not be allowed, given that there have already been a stop before the flight to HAN)?

Many thanks