fetch
all branches that exist in the <code>origin</code> (i.e. any ref that matches
the left-hand side of the value, <code>refs/heads/*</code>) and update the
corresponding remote-tracking branches in the <code>refs/remotes/origin/*</code>
hierarchy.</p>
</li>
<li>
<p>When <code>git fetch</code> is run with explicit branches and/or tags
to fetch on the command line, e.g. <code>git fetch origin master</code>, the
&lt;refspec&gt;s given on the command line determine what are to be
fetched (e.g. <cod