title: How to associate GitHub issues with a branch?
body: <p>Nearly every issue I file on gh refers to code on a particular branch. Does github have any mechanism to link an issue to the branch?</p>
  
  <p>I need to filter issues by branch, so I am not distracted by issues in other feature branches.</p>
  
  <p>Is there a way to do this? I know milestones can be (ab)used to reach a similar effect, but things get really confusing when the branch becomes a pull request and it shows up as another issue.</p>