Installing Portatiner & Docker turns off volume quotas....

Greetings!

I wanted to try out Docker & Portainer as a way of getting up to date versions of Tautulli and MySQL (amongst others). Doing so turns off the quota setting for my data volume (resulting in all my snapshots becoming invisible, although they are still all there). I can manually turn quotas back on, but a reboot will turn quotas off again.

Does anyone know whether this a feature or a bug - and is it desirable behaviour?

Thanks in advance.