Hmm, that sounds like a bug, you shouldn't be able to create two users with the same name.
When you delete the account, it removes it's entry in the 'userslug:uid' set which that route uses to lookup your profile info, as well as a bunch of other sets. But it doesn't delete your user object at 'user:{uid}' (because your other account has a different uid). You would have to re-add your username to the sets it's removed from in user.delete. I'm unfortunately not sure the exact command you would have to use in mongod though. 😞 You should be able to find your original users uid in /api/users though. 🐦 Renaming the account from the acp may also work.
