docker restart doesn't create a new container, I was incorrect about that. As soon as you create a new container it will all go away.
I guess all that matters is that it works for you now. I will break again in the future but that's a problem for another day.
Made a script to do this out of boredom
Admin Edit: We do not allow users to post scripts to our forums.
Just mount the file in to your container and be done with it all.
Just image if there was an option on the settings page.
Happy to accept your Pull Requests with the code changes.