 they track. By default
<em>origin</em> is used for that purpose. New upstream updates
will be fetched into <a href="#def_remote_tracking_branch">remote-tracking branches</a> named
origin/name-of-upstream-branch, which you can see using
<code>git branch -r</code>.</p>
</dd>
<dt class="hdlist1"><a id="def_overlay"></a>overlay</dt>
<dd>
<p>Only update and add files to the working directory, but don&#8217;t
delete them, similar to how <em>cp -R</em> would update the contents
in the destination directory.  This