Re: [PERDITION-USERS] simple user remap question

We've been using perdition in production since early 2003 and has worked great with over 70K users configured. We need to remap userA --> userB but we don't have the username_from_database option set and our database has simple entries, basically username key and realhost (e.g., userA xyz.d.umn.edu). We can set username_from_database and rewrite the database entries as 'userA userB*xyz.d.umn.edu', where '*' is the domain delimiter, but this will create an outage during the update, and we only need to remap around 50 users. Question: If username_from_database is set and some users have entries like 'userA userB*xyz.d.umn.edu' and some have 'userC xyz.d.umn.edu' or maybe 'userC *xyz.d.umn.edu', will or can perdition use userC, as in the latter case, if the name in the server portion is empty? We don't have a test system otherwise I would try it...