     newToken  = null
     invite    = null
     user      = null
+    quotaExceedErr = null
 
     queue = [
       =>
         @validateAll userFormData, (err) =>
-          return callback err  if err?
+          return callback err  if err
           queue.next()
       =>
         # password is autogenerated before here

          queue.next()
      =>
        @addToGroups account, invite, user.email, (err) =>
          return callback err  if err?
          queue.next()
      =>
        @removeFromGuestsGroup account, (err) =>
          return callback err  if err?
          queue.next()
      ->
        accountModifier = $set:

        JAccount.emit "AccountRegistered", account, referrer
        queue.next()
      =>
        callback quotaExceedErr, newToken
        queue.next()
    ]

