I have a very small repo in which I do all dev work in the master branch and use tags as \"stable\" points in history.
I guess by default Bower seems to fet
Specify a git commit SHA instead of a version:
bower install '#'
Example:
bower install 'git://github.com/yeoman/stringify-object.git#d2895fb97d'
You can also specify a branch instead of a SHA, but that's generally not recommended unless it's in development and you control all the parts.