title: Git tagging and rails gemfile
body: <p>I have a gem that is hosted on github and not yet pushed to rubygems, and I added a tag to the master branch of the gem like this:</p>
  
  <pre><code>git tag -a v0.1.0 -m "gem version 0.1.0"
  git push origin -tags
  </code></pre>
  
  <p>and then in a rails application I have on github I edited my gemfile like so:</p>
  
  <pre><code>gem 'your-gem', git: 'git://github.com/your-repo/your-gem.git', tag: 'v0.1.0'
  </code></pre>
  
  <p>My question is, when I merge in additional changes into the master branch of my gem, my rails application will still point to the last commit before I made the tag? I just want to make sure adding additional changes to the gems master branch will not break anything in the rails app. Thank You</p>