external IdP integration and disableLocalStrategy: true

[finkinfridom]

We're working on a couple of plugins to integrate external IdP platforms (such as Auth0 or Zitadel).
In our ideal scenario, users should be able to connect only with this integration (no local login page).

That should be accomplished by setting the auth.disableLocalStrategy property to true.
I just tried and from the UI perspective works like a charm by removing the default login and leaving me with my custom Login button.

Unfortunately, this approach doesn't work out of the box when the payload instance is completely new. Instead of providing me the possibility to create a first user (like a super admin user), I receive this exception

Should be possible to manage a scenario where:

1. a first user is created
2. localStrategy is then disabled
3. only custom Login is used