Show in API when an item is a save

Items in the API (the friend shake, for example) don't indicate when they are “saves” of other items already on the site. This would help clients that would like to show saves as “shared” by the poster, but credit the original poster of the item. For example, a save may appear in the API as:

{
    "description": null,
    "height": 360,
    "name": "http://www.youtube.com/watch?v=oEpj6m_hooI",
    "original_image_url": "http://mlkshk.com/r/XNU",
    "permalink_page": "http://mlkshk.com/p/XNU",
    "title": "\u65e5\u672c\u4e00\uff01\uff1f\u3000\u5927\u304d\u306a\u9d8f\u5375\uff01\uff01\u3000\u885d\u6483\u306e\u4e2d\u8eab  \u3000BIG\u3000EGG",
    "user_id": 2,
    "user_name": "andre",
    "width": 480
}

Instead it might be nice if it were:

{
    "description": null,
    "height": 360,
    "name": "http://www.youtube.com/watch?v=oEpj6m_hooI",
    "original": {
        "description": null,
        "height": 360,
        "name": "http://www.youtube.com/watch?v=oEpj6m_hooI",
        "original_image_url": "http://mlkshk.com/r/XN1",
        "permalink_page": "http://mlkshk.com/p/XN1",
        "title": "\u65e5\u672c\u4e00\uff01\uff1f\u3000\u5927\u304d\u306a\u9d8f\u5375\uff01\uff01\u3000\u885d\u6483\u306e\u4e2d\u8eab  \u3000BIG\u3000EGG",
        "user_id": 1778,
        "user_name": "satoru",
        "width": 480
    },
    "original_image_url": "http://mlkshk.com/r/XNU",
    "permalink_page": "http://mlkshk.com/p/XNU",
    "title": "\u65e5\u672c\u4e00\uff01\uff1f\u3000\u5927\u304d\u306a\u9d8f\u5375\uff01\uff01\u3000\u885d\u6483\u306e\u4e2d\u8eab  \u3000BIG\u3000EGG",
    "user_id": 2,
    "user_name": "andre",
    "width": 480
}