--TEST--
Ensure a partial update of a dependency does NOT update dependencies which provide its requirements.

--COMPOSER--
{
    "repositories": [
        {
            "type": "package",
            "package": [
                {"name": "root/req1", "version": "1.0.0", "require": {"virtual/pkg1": "1.*"}},
                {"name": "root/req1", "version": "2.0.0", "require": {"virtual/pkg1": "2.*"}},
                {"name": "root/req2", "version": "1.0.0", "require": {"dep/pkg1": "1.*", "dep/pkg2": "1.*"}},
                {"name": "dep/pkg1", "version": "1.0.0", "provide": {"virtual/pkg1": "1.0.0"}},
                {"name": "dep/pkg1", "version": "1.2.0", "provide": {"virtual/pkg1": "2.0.0"}},
                {"name": "dep/pkg2", "version": "1.0.0", "provide": {"virtual/pkg1": "1.0.0"}},
                {"name": "dep/pkg2", "version": "1.2.0", "provide": {"virtual/pkg1": "2.0.0"}}
            ]
        }
    ],
    "require": {
        "root/req1": "*",
        "root/req2": "*"
    }
}
--LOCK--
{
    "packages": [
        {"name": "dep/pkg1", "version": "1.0.0", "type": "library", "provide": {"virtual/pkg1": "1.0.0"}},
        {"name": "dep/pkg2", "version": "1.0.0", "type": "library", "provide": {"virtual/pkg1": "1.0.0"}},
        {"name": "root/req1", "version": "1.0.0", "type": "library", "require": {"virtual/pkg1": "1.*"}},
        {"name": "root/req2", "version": "1.0.0", "type": "library", "require": {"dep/pkg1": "1.*", "dep/pkg2": "1.*"}}
    ],
    "packages-dev": [],
    "aliases": [],
    "minimum-stability": "stable",
    "stability-flags": {},
    "prefer-stable": false,
    "prefer-lowest": false,
    "platform": {},
    "platform-dev": {}
}
--RUN--
update root/req1 --with-dependencies
--EXPECT-LOCK--
{
    "packages": [
        {"name": "dep/pkg1", "version": "1.0.0", "type": "library", "provide": {"virtual/pkg1": "1.0.0"}},
        {"name": "dep/pkg2", "version": "1.0.0", "type": "library", "provide": {"virtual/pkg1": "1.0.0"}},
        {"name": "root/req1", "version": "1.0.0", "type": "library", "require": {"virtual/pkg1": "1.*"}},
        {"name": "root/req2", "version": "1.0.0", "type": "library", "require": {"dep/pkg1": "1.*", "dep/pkg2": "1.*"}}
    ],
    "packages-dev": [],
    "aliases": [],
    "minimum-stability": "stable",
    "stability-flags": {},
    "prefer-stable": false,
    "prefer-lowest": false,
    "platform": {},
    "platform-dev": {}
}
--EXPECT--
Installing dep/pkg1 (1.0.0)
Installing dep/pkg2 (1.0.0)
Installing root/req1 (1.0.0)
Installing root/req2 (1.0.0)