The auth emulator can only create sso users in the default tenant

[wieringen]

The auth emulator can only create sso users in the default tenant.

[REQUIRED] Environment info

firebase-tools:

firebase-tools: v14.3.1

Platform:

Platform: macOS

[REQUIRED] Test case

1. I created a very simple testcase that illustrates the problem: https://github.com/wieringen/firebase-sso-tenants
2. run the script called ./run.sh
3. Open "http://127.0.0.1:5002/" in a web browser and follow the steps listed

[REQUIRED] Steps to reproduce

1. I created a very simple testcase that illustrates the problem: https://github.com/wieringen/firebase-sso-tenants
2. run the script called ./run.sh
3. Open "http://127.0.0.1:5002/" in a web browser and follow the steps listed

[REQUIRED] Expected behavior

SSO emulator users should be created in the tenant that is specified.

[REQUIRED] Actual behavior

SSO emulator users are always created in the default tenant.

[wieringen]

@aalej My PR should fix this issue. I tested it and works on my machine :)

[aalej]

Thanks @wieringen for taking the initiative in making a PR, this is appreciated! Let me try to reproduce the issue as well as test the changes.