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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - ASSERTION FAILED: m_refChild-&gt;parentNode() in WebCore::InsertNodeBeforeCommand::InsertNodeBeforeCommand"
   href="https://bugs.webkit.org/show_bug.cgi?id=151034#c1">Comment # 1</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - ASSERTION FAILED: m_refChild-&gt;parentNode() in WebCore::InsertNodeBeforeCommand::InsertNodeBeforeCommand"
   href="https://bugs.webkit.org/show_bug.cgi?id=151034">bug 151034</a>
              from <span class="vcard"><a class="email" href="mailto:rego&#64;igalia.com" title="Manuel Rego Casasnovas &lt;rego&#64;igalia.com&gt;"> <span class="fn">Manuel Rego Casasnovas</span></a>
</span></b>
        <pre>I can reproduce the same crash using &quot;display: flex;&quot; or even &quot;display: block;&quot;.

So, it seems not directly related to CSS Grid Layout code.</pre>
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