如何正确地要求Composer中的特定提交,以便它可用于依赖包？

我有一个图书馆foo/foo-lib,其requires具体从GitHub承诺:

{
    "name": "foo/foo-lib",
    "repositories": [
        {
            "type": "vcs",
            "url": "https://github.com/KnpLabs/Gaufrette.git"
        }
    ],
    "require": {
        "knplabs/gaufrette": "dev-master#2633721877cae79ad461f3ca06f3f77fb4fce02e"
    }
}

它工作正常:

$ composer update
Loading composer repositories with package information
Updating dependencies (including require-dev)                                 
  - Updating knplabs/gaufrette dev-master (2633721 => 2633721)
    Checking out 2633721877cae79ad461f3ca06f3f77fb4fce02e

Generating autoload files

但是当我在其他项目中需要该库时:

{
    "name": "bar/bar-app",
    "repositories": [
        {
            "type": "vcs",
            "url": "ssh://git.example.com/foo-lib"
        }
    ],
    "require-dev": {
        "foo/foo-lib": "dev-master"
    }
}

它产生依赖性错误:

Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - Installation request for foo/foo-lib dev-master -> satisfiable by foo/foo-lib[dev-master].
    - foo/foo-lib dev-master requires knplabs/gaufrette dev-master#2633721877cae79ad461f3ca06f3f77fb4fce02e -> no matching package found.

所以我的问题是:如何正确地require从我的库中的GitHub进行特定的提交,以便它可以在依赖包中使用？