title: How to show list of unapplied changesets in Mercurial
body: <p>After pushing changesets to a repository called 'A' how can I see the list of changesets waiting to be applied when I am in 'A'?</p>
  
  <p>Expanding on that,</p>
  
  <ol>
  <li>In repo B I push changesets to repo B</li>
  <li>I change to repo B</li>
  <li>How can I list the changesets pushed in step 1?</li>
  </ol>