French Lingerie is being wholesaled by a lot of companies to a lot of nurseries. When they start selling a daylily, or any other plant for that matter through the Dutch wholesale trade, they are going to get mixed up. Often what happens is any daylily that even looks similar gets a tag stuck on it.
When you start seeing them sold from Brecks and places like that, you can be sure they're getting mixed up in the trade.