Could not install in Symfony 4.2

[vegancorr]

Because of the require from composer.json - symfony/symfony": "^3.0 | ^4.0 and the ban from symfony itself to include the whole symfony package I get the following error:

"symfony/symfony v4.2.0 conflicts with root[dev-master]."

composer.json from Symfony 4 - commit :

    "conflict": {
        "symfony/symfony": "*"
    },

An easy fix would be, I think replacing:
"symfony/symfony": "^3.0 | ^4.0"
with
"symfony/framework-bundle": "^3.0 | ^4.0"