Different behaviour of saving embed document

[quard8]

I have my requirements

        'pls'   => array('DocumentSet'),
        'pls.$' => array('Document:Model_Playlist', 'AsReference'),

For example then I saving only "pls" document

$this->pls = new Shanty_Mongo_DocumentSet();
$this->pls->addDocument($playlist);
$this->pls->save();

Resulting JSON representation in DB will be

{
    "pls": {
        "0": {
            "$ref": "playlists",
            "$id": ObjectId("400000000000000000000001")
        }
    }
}

But when I will save all document via $this->save()

I will get

{
    "pls": [
        {
            "$ref": "playlists",
            "$id": ObjectId("400000000000000000000001")
        }
    ]
}

Seem's like a bug, but maybe I'm wrong?

[coen-hyde]

This is a known bug with Shany Mongo. It's caused by php munting the data types after first save. As in your dataset is getting saved as an array, pulled out as a document then resaved as a document. I'm going to try an fix this.