chromium/third_party/blink/web_tests/editing/execCommand/5763082.html

<div id="description">This tests for a hang when outdenting an indented list whose last item contains another list.  It should not hang.<b>The selection is incorrect here.</b></div>
<div id="edit" contenteditable="true">
<blockquote class="webkit-indent-blockquote">
    <ol>
        <li>orange</li>
        <li>lemon<span><div><blockquote class="webkit-indent-blockquote"><ol><li>orange</li><li>lemon</li></ol></blockquote></div></span></li>
    </ol>
</blockquote>
</div>

<script>
if (window.testRunner)
    testRunner.dumpAsText();
div = document.getElementById("edit");
div.focus();
document.execCommand("SelectAll");
document.execCommand("InsertOrderedList");
</script>