title: How to merge changes into a branch from the parent's parent in git?
body: <p>I have a branch coming from master and another branch coming from it. </p>
  
  <pre><code>master
     -- branch-a
        -- branch-b
  </code></pre>
  
  <p>Is it possible to pull changes from master into branch-b without them first being pulled into branch-a?</p>