I am making some travel plans around Christmas and I may attempt two visa-free transits in China within a short period of time. E.g., some airport X outside Mainland China -> CAN -> some airport Y outside Mainland China for a short time, either a few hours or a few days -> CAN -> some airport X outside Mainland China.
Is that ok, or will my second attempt to enter China via visa-free transit be rejected on the grounds that I was recently granted a visa-free transit? If that matters, I'm a French citizen. More generally, I'd be interested to know the limitations on how many visa-free transits can be granted.