--TEST--
Assert that prefer-lowest can not pick the lowest version of all packages when two branches are valid but conflict with each other
--COMPOSER--
{
    "repositories": [
        {
            "type": "package",
            "package": [
                {"name": "req/pkg", "version": "1.0.0", "require": {"req/pkg2": "^1.2"}},
                {"name": "req/pkg2", "version": "1.0.0", "require": {"req/pkg": "^1.2"}},
                {"name": "req/pkg", "version": "1.2.0", "require": {"req/pkg2": "^1.0"}},
                {"name": "req/pkg2", "version": "1.2.0", "require": {"req/pkg": "^1.0"}},
                {"name": "req/pkg", "version": "1.4.0", "require": {"req/pkg2": "^1.0"}},
                {"name": "req/pkg2", "version": "1.4.0", "require": {"req/pkg": "^1.0"}}
            ]
        }
    ],
    "require": {
        "req/pkg": "*",
        "req/pkg2": "*"
    }
}

--RUN--
update --prefer-lowest

--EXPECT--
Installing req/pkg2 (1.2.0)
Installing req/pkg (1.0.0)