In the larger scheme of things, this is definitely a minor issue, but noticed it tonight. I loaded a custom workout and selected to ride Douce France. I rode the route for the whole workout and never deviated.
When the activity loaded to save, the auto activity name indicated La Reine.
I’ve had this same issue myself. I believe it is a known/previously reported issue that is not fixed yet.
I’ve posted on all these reports now so that someone from Zwift can maybe link/merge them and add to “known issues” list and get this escalated to development, if not already done so: