New docker-compose Service => Convert to database

[evilmastermind]

Hi!
I created a new service using "Docker compose empty".
The service is a custom postgresql image, and I was delighted to find that, inside the service option, there's the possibility to "Convert to Database", to implement automatic backups.

But whenever I convert the service into a database, a second service is created, which is not marked as database. And whenever I deploy the service, only the non-database version is deployed.

What am I doing wrong?