title: What is the svn:mergeinfo equivalent for git?
body: <p>I am missing clean mergeinformation in git:</p>
  
  <ul>
  <li>What commits (list including comments) have been merged by a commit</li>
  <li>What commits have NOT been merged by a commit.</li>
  </ul>
  
  <p>How can I get those? In SVN there was very useful concept of mergeinfo.</p>