--TEST--
Update mirrors with a new root require which is not yet in lock should simply ignore it
--COMPOSER--
{
    "repositories": [
        {
            "type": "package",
            "package": [
                {"name": "a/a", "version": "1.0.0"},
                {"name": "a/a", "version": "1.1.0"},
                {"name": "b/b", "version": "1.0.0"},
                {"name": "b/b", "version": "1.1.0"},
                {"name": "new/req", "version": "1.0.0"},
                {"name": "new/req", "version": "1.1.0"}
            ]
        }
    ],
    "require": {
        "a/a": "1.*",
        "new/req": "1.*"
    },
    "require-dev": {
        "b/b": "1.*"
    }
}
--INSTALLED--
[
    {"name": "a/a", "version": "1.0.0"},
    {"name": "b/b", "version": "1.0.0"}
]
--LOCK--
{
    "packages": [
        {"name": "a/a", "version": "1.0.0", "type": "library"}
    ],
    "packages-dev": [
        {"name": "b/b", "version": "1.0.0", "type": "library"}
    ],
    "aliases": [],
    "minimum-stability": "dev",
    "stability-flags": {},
    "prefer-stable": false,
    "prefer-lowest": false,
    "platform": {},
    "platform-dev": {}
}
--RUN--
update mirrors
--EXPECT-LOCK--
{
    "packages": [
        {"name": "a/a", "version": "1.0.0", "type": "library"}
    ],
    "packages-dev": [
        {"name": "b/b", "version": "1.0.0", "type": "library"}
    ],
    "aliases": [],
    "minimum-stability": "stable",
    "stability-flags": {},
    "prefer-stable": false,
    "prefer-lowest": false,
    "platform": {},
    "platform-dev": {}
}
--EXPECT--