title: What happens to a git branch after delete if it was not merged?
body: <p>I have a small repo with a master and an experimental branch for trying out some new features. I decided not to implement those features on the master. </p>
  
  <p>What happens to the commits of the experimental branch when I delete that branch using <a href="https://stackoverflow.com/a/2003515/607033"><code>git push origin --delete &lt;branchName&gt;</code></a>? Will git keep some non accessible remnants? If I remember well I have tags on that branch and it is uploaded to github. Will this cause any problem?</p>
  
  <p><strong>edit:</strong></p>
  
  <p>I checked with <code>gitk --all</code> as suggested, the commit graph looks like this:</p>
  
  <p><a href="https://i.stack.imgur.com/xjV6d.png" rel="noreferrer"><img src="https://i.stack.imgur.com/xjV6d.png" alt="commit graph"></a></p>
  
  <p>What I want to remove the babel branch with all of its commits, and I don't want it to be restorable. Is this possible?</p>