--TEST--
Test that conflict of a dependency with a branch alias of another dependency is not ignored, even if the alias is not required for installation.
--COMPOSER--
{
    "repositories": [
        {
            "type": "package",
            "package": [
                { "name": "some/dep", "version": "1.0.0" },
                { "name": "some/dep", "version": "1.1.0" },
                { "name": "some/dep", "version": "1.2.0" },
                { "name": "some/dep", "version": "dev-main", "extra": {"branch-alias": {"dev-main": "1.3.x-dev"} } },
                { "name": "some/dep", "version": "1.2.x-dev" },
                { "name": "conflictor/foo", "version": "1.0.0", "conflict": { "some/dep": ">=1.3" } }
            ]
        }
    ],
    "require": {
        "some/dep": "dev-main",
        "conflictor/foo": "1.0.0"
    }
}
--RUN--
update
--EXPECT-EXIT-CODE--
2
--EXPECT-OUTPUT--
Loading composer repositories with package information
Updating dependencies
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - Root composer.json requires conflictor/foo 1.0.0 -> satisfiable by conflictor/foo[1.0.0].
    - Root composer.json requires some/dep dev-main -> satisfiable by some/dep[dev-main].
    - conflictor/foo 1.0.0 conflicts with some/dep 1.3.x-dev.
    - some/dep 1.3.x-dev is an alias of some/dep dev-main and must be installed with it.

--EXPECT--