InsaneJournal Announcements

I have a quick question that hopefully someone can answer. When I typed a username in to see if it was deleted, it directed me to a different deleted username. (I'm guessing the username was renamed and they chose the "automatically forward users from ___ to new username" option. ) My question is, when the username is purged, will the re-directed name free up?

I hope that makes sense, if not let me explain it a different way. Let's say I went to view the username xx and it automatically went to the username xxp, and xxp is deleted. Once xxp is purged, will xx be freed up? Thanks to anyone who can help!