Ambiguity in docs - Transactions re-using the same ClientSession

Hi, thanks a lot for your response!
I understand all that and that’s the case we’re going to be in 99% of the time.
But we have also tried using a different MongoClient for Wheels and Cars - but using the same session in both of the clients - and it works.
I suspect that’s not supposed to be possible and we should not rely on that working going forwards?

Kind regards,
Emil