Installation with DB connection over TLS not possible

It is impossible to install Matomo with a remote server which enforces TLS for the DB connection.

The UI does not support SSL settings. Manually adding the config.ini.php results in a successful connection, however makes Matomo believe the setup is already done. There is no obvious way to import the scheme then.

Currently I have to disable TLS support in the DB until Matomo is done with the setup.

Expected behavior: a) Allow a partial configuration b) Allow to create the scheme from console