em> was about specifying a single commit parent, these
three notations also consider its parents. For example you can say
<em>HEAD^2^@</em>, however you cannot say <em>HEAD^@^2</em>.</p>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_revision_range_summary">Revision Range Summary</h2>
<div class="sectionbody">
<div class="dlist">
<dl>
<dt class="hdlist1"><em>&lt;rev&gt;</em></dt>
<dd>
<p>Include commits that are reachable from &lt;rev&gt; (i.e. &lt;rev&gt; and its
ancestors).</p>
</dd>
<dt class="