Take out extra person.save

app/models/user.rb

@@ -363,7 +363,6 @@ class User
       self.password              = opts[:password]
       self.password_confirmation = opts[:password_confirmation]
       self.save!
-      self.person.save!
       invitations_to_me.each{|invitation| invitation.to_request!}
 
       self.reload # Because to_request adds a request and saves elsewhere