Utiliser un GIT custom dans composer (avec une branche custom)

"require": {
        "OFFICIAL_GIT/OFFICIAL_PACKAGE": "dev-FORK_BRANCH_NAME"
    },
    "repositories": [
        {
            "type": "vcs",
            "url":  "git@github.com:USER_WHO_FORKED/OFFICIAL_PACKAGE.git"
        }
    ],