Fix model name

[lemontree55]

• Fix inner model name in outer model
• Change behavior of Model#to_h which Choice elements.

[adfoster-r7]

Thanks for taking a look!

I rebased #45 on this PR and it looks like there's still a nil key somehow 🤔

{
  :LdapMessage => {
    :message_id=>1,
    :protocol_op=>{
    :bind_request=>{
      :version=>3,
      :name=>"Administrator@adf3.local",
      nil=>{
        :simple=>"p4$$w0rd"
      }
    }
   }
  }
}

[lemontree55]

I locally merged your branch on mine, and the result is as expected.

It seems you rebased 1 commit behind branch head. Branch head is c41fea5.

[adfoster-r7]

Apologies, thanks for catching that - the test pass now! 🏆

I was reflecting on your original comment - and I was thinking that the current/original to_h behavior is likely what most users expect to_h to behave as - however the new functionality added in this PR would definitely be great for verifying the LDAP integration tests that I'm working on behave as expected

Since this PR would be an API breaking change in terms of behavior for users, I wonder if this something that would make sense as a backwards compatible/opt in API? Maybe result.as_json(include_choice_in_json: true) - similar to https://apidock.com/rails/ActiveModel/Serializers/JSON/as_json include_root_in_json, or a separate method entirely? Let me know your thoughts 🎉

Edit: I see now that this PR impacts more than just the to_h behavior - but also the accessor functionality as far as I can see, so my suggestion isn't viable - but the change would indeed be backwards breaking 👍