Merge/change accounts after SSO

Thanks, I was hoping that there was an easier option because I don’t need to merge accounts in 99% of cases (since the new accounts are empty and should be deleted), I just want the SSO to log them into their old accounts. Merging them, especially per the second quote, is only a far second on the preference order, especially since it would mean abandoning their old user names and settings and pushing all content into the empty SSO accounts.

How does the system even know which account to log someone into? When I noticed that Discourse had created a bogus account for me, I went into the Discourse console and changed my email address there in order to try to get logged into the right account, but it still sends me to the bogus one even though the email addresses no longer match.