I've almost finalised my latest *A RTW. To stay within the 29,000 miles I hope to be able to do EDI-CPH-BKK. This means that I am transiting through my point of origin - CPH. The stopover is 4 hours. Am I allowed to do this or is it considered returning to the point of origin?

CPH PMI Stopover
PMI LHR Transit
LHR EDI Stopover
EDI CPH Transit
CPH BKK Stopover
BKK HKT Stopover
HKT SIN Stopover
SIN SYD Stopover
SYD CHC Stopover
CHC AKL Transit
AKL LAX Transit
LAX LHR Transit
LHR GLA Stopover
GLA LHR Transit
LHR CDG Stopover
CDG LHR Transit
LHR CPH