--TEST--
Updating a dev package should update to the latest available reference
--COMPOSER--
{
    "repositories": [
        {
            "type": "package",
            "package": [
                {
                    "name": "a/a", "version": "dev-master",
                    "source": { "reference": "abc123", "url": "", "type": "git" }
                }
            ]
        }
    ],
    "require": {
        "a/a": "dev-master"
    }
}
--INSTALLED--
[
    {
        "name": "a/a", "version": "dev-master",
        "source": { "reference": "def000", "url": "", "type": "git" },
        "dist": { "reference": "def000", "url": "", "type": "zip", "shasum": "" }
    }
]
--RUN--
update
--EXPECT--
Upgrading a/a (dev-master def000 => dev-master abc123)