cal
ref that matches it is fast-forwarded using &lt;src&gt;.
If the optional plus <code>+</code> is used, the local ref
is updated even if it does not result in a fast-forward
update.</p>
</div>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<div class="title">Note</div>
</td>
<td class="content">
When the remote branch you want to fetch is known to
be rewound and rebased regularly, it is expected that
its new tip will not be descendant of its previous tip
(as stored in yo