Ordered object: object within json doesn't respect order

[luispabon]

I'm currently using your library to aid with message signature verification via a hash from a legacy system, where reconstructing the original structure in the exact same order is paramount.

Consider the following json:

Loaded into an OrderedMap then iterated through, like so (omitting error handling for brevity):

jsonString := `{
    "stuff": {
        "a": "1",
        "b": "12",
        "c": "654"
    },
    "yolo": "covfefe",
    "yay": 5
}`

var unmarshalled json.OrderedObject

err := json.Unmarshal([]byte(jsonString), &unmarshalled)

for key, item := range unmarshalled {
  // do some stuff
}

All the values at the root level are processed in the right order 100% of the time. The "stuff" array however is a map[string]interface{} which by its own nature is unordered. Therefore its contents can come out in any random order.

These should probably be unmarshalled into another OrderedObject

[virtuald]

Hm, I thought it did that -- though I didn't write the code, just hosting it for convenience. :) If it doesn't, then that sounds like a bug to me. I'm on vacation until mid-February, but I'm happy to review any pull requests with that testcase added.