Maintainer test instances are a special case and as such will be in a “frozen” state for access after the outage. This means that no updates will be made to users or ssh keys on these machines.
It is my understanding that this will not prevent already-logged-in Discourse users from accessing this site, since it establishes a long-lived authentication cookie. But if you’re not logged in, or become logged out, you won’t be able to log back in until the downtime is over.
I should have specified that I only meant the Fedora Discussion site login was working. I don’t know that all Fedora sites are finished being updated yet.