Missing on_site in Stack Apps site data in associated_users from stackauth query

Question

This is what I get for Stack Apps:

    {
        "display_name": "user",
        "email_hash": "11aa11...22bb22...",
        "reputation": 101,
        "user_id": 0000,
        "user_type": "registered"
    }

And this is what I get from other sites:

    {
        "display_name": "user",
        "email_hash": "11aa11...22bb22...",
        "on_site": {
            "api_endpoint": "http://api.meta.stackoverflow.com",
            "description": "Q&A about Stack Overflow, Server Fault, and Super User",
            "icon_url": "http://sstatic.net/mso/apple-touch-icon.png",
            "logo_url": "http://sstatic.net/mso/img/logo.png",
            "name": "Stack Overflow Meta",
            "site_url": "http://meta.stackoverflow.com"
        },
        "reputation": 101,
        "user_id": 0000,
        "user_type": "registered"
    }

As you can see, the whole on_site portion is missing.

Answer 1

This has been fixed.

Answer 2

This is likely due to the fact that StackAuth does not show stackapps either.

A failure of the cascading type.

Sounds like an example where a persistent cache would be helpfule.