为什么Bower说Angular取决于随机事物？

我正在尝试安装一个软件包 bower install restangular --save

然后Bower要我选择一个Angular版本:

> Unable to find a suitable version for angular, please choose one:
>     1) angular#1.2.6 which resolved to 1.2.6 and has ang-changeorg, angular-cookies#1.2.6, angular-mocks#1.2.6, angular-resource#1.2.6,
> angular-sanitize#1.2.6, angular-scenario#1.2.6 as dependants
>     2) angular#1.2.17-build.226+sha.b6388b3 which resolved to 1.2.17-build.226+sha.b6388b3 and has angular-animate#1.2.17-build.226+sha.b6388b3 as dependants
>     3) angular#* which resolved to 1.2.18 and has restangular#1.4.0 as dependants
>     4) angular#~1.2.0 which resolved to 1.2.19-build.258+sha.ea653e4 and has angularfire#0.7.1 as dependants
>     5) angular#>= 1.0.8 which resolved to 1.3.0-build.2845+sha.e57ad6a and has angular-ui-router#0.2.10 as dependants
> 
> Prefix the choice with ! to persist it to bower.json

在这些选项中ang-changeorg是我在本地工作的另一个项目,与我当前的工作目录无关.

我bower.json对当前的项目看起来像这样:

{
  "name": "ang-changeorg",
  "version": "0.0.0",
  "appPath": "public",
  "dependencies": {
    "angular": "1.2.6",
    "json3": "~3.2.6",
    "es5-shim": "~2.1.0",
    "jquery": "~1.10.2",
    "bootstrap": "~3.0.3",
    "angular-resource": "1.2.6",
    "angular-cookies": "1.2.6",
    "angular-sanitize": "1.2.6",
    "firebase": "~1.0.11",
    "angularfire": "~0.7.1",
    "spin.js": "~2.0.0",
    "angular-ui-router": "~0.2.10",
    "angular-animate": "~1.2.16",
    "ng-file-upload": "~1.4.0"
  },
  "devDependencies": {
    "angular-mocks": "1.2.6",
    "angular-scenario": "1.2.6"
  },
  "resolutions": {
    "angular": "1.2.6"
  }
}

bower cache clean 没解决这个问题.

为什么凉亭ang-changeorg列为依赖？关于这些angularjs版本依赖如何工作的清晰度将是非常棒的.