[cvsnt] What does release do differently from delete?

[Siegfried Heintze]

I recently performed a checkout with the username "lgo2" and then (not
thinking) asked my system admin to change my account name to something more
meaningful such as "siegfried".

I assume I cannot do a release on that sandbox any more. Will I regret
deleting it?

Do I need to have my sys admin create that old lgo2 username again so I can
release that sandbox?

Thanks,
Siegfried