title: Why does my GitHub pull request have two commits?
body: <p>I've forked a project on GIT, and started contributing.
  From what I've understood, that project has a pending pull request at the time I cloned the project, and later that commit of a 3rd person was refused by the project owner.</p>
  
  <p>I've done my change (adding a single new file), and I wanted to push it to the master branch of the project. So I've pushed it to my github master branch, and then I wanted to make a pull request.</p>
  
  <p>In case I'm not clear, I've done this:</p>
  
  <ul>
  <li>Clone the project</li>
  <li>add a file &amp; commit</li>
  <li>push my changes to my github branch</li>
  <li><strong>wanted</strong> to make a pull-request. (but didn't yet)</li>
  </ul>
  
  <p>In the pull request, I've 2 commits ( but I've only made 1 ):</p>
  
  <ul>
  <li>Mine ( the most recent )</li>
  <li>The refused pull request of another person.</li>
  </ul>
  
  <p>So I only want to make a pull request for my commit, and remove the previous commit or do something to avoid me having that problem every time.</p>
  
  <p>Note1;
  I use the SmartGit client, but if the instructions are clear and well explained, I don't mind using the shell client too.</p>
  
  <p>Note2;
  I've not created any branch yet.</p>
  
  <p>Thanks !</p>