Filter GitHub issues matching one of multiple milestones (OR filter)
<p>I'm trying to filter my GitHub issues based on an OR filter of milestones. Specifically, I want to retrieve all issues that are in milestone X <em>or</em> milestone Y. </p>

<p>Things I've tried:</p>

<ul>
<li><code>milestone:X,Y</code></li>
<li><code>milestone:"X","Y"</code></li>
<li><code>milestone:X milestone:Y</code></li>
<li><code>-no:milestone</code> (aka show me issues that have <em>any</em> milestone by way of <em>not</em> showing me issues with <em>no</em> milestones)</li>
</ul>

<p>I'm using GitHub Enterprise so don't have the option of installing additional products.</p>

<p>Edit: Seems like per <a href="https://stackoverflow.com/questions/29136057/can-i-search-github-labels-with-logical-operator-or">Can I search github labels with logical operator OR?</a> searching <em>labels</em> by logical OR works (for issues), but the same syntax for milestones did nothing for me.</p>