'bower update' with a component.json

gistfile1.txt

~/Development/footest ls
component.json
~/Development/footest cat component.json 
{
  "name": "footest",
  "version": "0.0.1",
  "main": [],
  "dependencies": {
    "jquery": "~1",
    "underscore": "~1.3.3",
    "lodash": "git://github.com/bestiejs/lodash#v0.7.0",
    "amplify": "git://github.com/appendto/amplify#1.1.0"
  }
}
~/Development/footest bower install
bower cloning git://github.com/bestiejs/lodash
bower cloning git://github.com/appendto/amplify
bower cached git://github.com/bestiejs/lodash
bower fetching lodash
bower cached git://github.com/appendto/amplify
bower fetching amplify
bower checking out amplify#1.1.0
bower copying /Users/strathmeyer/.bower/amplify
bower checking out lodash#v0.7.0
bower copying /Users/strathmeyer/.bower/lodash
bower cloning git://github.com/documentcloud/underscore.git
bower cached git://github.com/documentcloud/underscore.git
bower fetching underscore
bower cloning git://github.com/components/jquery.git
bower cached git://github.com/components/jquery.git
bower fetching jquery
bower checking out jquery#1.8.1
bower copying /Users/strathmeyer/.bower/jquery
bower checking out underscore#1.3.3
bower copying /Users/strathmeyer/.bower/underscore
~/Development/footest bower update
bower error No git url found for undefined
~/Development/footest bower update jquery
bower error No git url found for undefined
~/Development/footest