--TEST--
Updates installed alias packages
--COMPOSER--
{
    "repositories": [
        {
            "type": "package",
            "package": [
                {
                    "name": "a/a", "version": "dev-master",
                    "require": { "b/b": "2.0.*" },
                    "source": { "reference": "abcdef", "url": "https://example.org", "type": "git" },
                    "extra": { "branch-alias": { "dev-master": "1.0.x-dev" } }
                },
                {
                    "name": "b/b", "version": "dev-master",
                    "source": { "reference": "123456", "url": "https://example.org", "type": "git" },
                    "extra": { "branch-alias": { "dev-master": "2.0.x-dev" } }
                }
            ]
        }
    ],
    "require": {
        "a/a": "~1.0@dev",
        "b/b": "@dev"
    }
}
--INSTALLED--
[
    {
        "name": "a/a", "version": "dev-master",
        "require": { "b/b": "2.0.*" },
        "source": { "reference": "abcdef", "url": "https://example.org", "type": "git" },
        "extra": { "branch-alias": { "dev-master": "1.0.x-dev" } }
    },
    {
        "name": "b/b", "version": "dev-master",
        "source": { "reference": "123456", "url": "https://example.org", "type": "git" },
        "extra": { "branch-alias": { "dev-master": "2.0.x-dev" } }
    }
]
--RUN--
update
--EXPECT--