Round Trip

Hi,

I have a round trip ticket Paris / Beijing with a stop at London each time.
I'm currently in Shanghai. If i go to Hong Kong then take a plane to go to Beijing and take my return flight for Paris, am I still eligible for the no visa rule?
My schedule would be like Paris => Beijing => Shanghai => Hong Kong => Beijing => Paris with Paris / Beijing roundway trip and the other flight are one way tickets.

Thank you