After an Upgrade, Administrators are forced to create a space upon login

Summary

Similar to CONF-37770, administrators are forced to create a space upon login, after a Confluence upgrade to 5.9.x. Note that this does not happen on 5.8.x though.

Environment

Confluence upgrade to 5.9.x

Steps to Reproduce

1. Install Confluence 5.5.x (for example), and login with your admin account. Make sure that there are no tutorial prompts
2. Proceed to upgrade to 5.9.x . Notice that you will be forced to create a space before you can access the dashboard

Expected Results

1. Welcome Screen appears, with ability to skip the walkthrough entirely

Actual Results

1. In actuality, there's no way to skip the walkthrough. Regular users can just walk through the tutorial, but admins have to create a space to complete it.

Workaround

At this point, the only way through the tutorial is to complete it.