title: How to remove duplicate file tracking in Git
body: <p>One of my files is tracked twice after I changed the name of my folder.</p>
  <p>Git is now tracking the following two files, which are actually the same file.</p>
  <blockquote>
  <p>src/Website/scripts/common.js</p>
  <p>src/Website/Scripts/common.js</p>
  </blockquote>
  <p>How can I remove the second one from be tracked? This folder doesn't excist anymore, because I renamed it from <code>Scripts</code> to <code>scripts</code>.</p>