Re: [whatwg/dom] Manage slot manipulation centrally and special case replace operations (#695)

rniwa commented on this pull request.



>     <li>If <var>node</var> is a {{Text}} node, run the <a>child text content change steps</a> for
    <var>parent</var>.
 
-   <li><p>If <var>parent</var>'s <a for=tree>root</a> is a <a for=/>shadow root</a>, and
-   <var>parent</var> is a <a>slot</a> whose <a for=slot>assigned nodes</a> is the empty list,
-   then run <a>signal a slot change</a> for <var>parent</var>.
-
-   <li><p>Run <a>assign slotables for a tree</a> with <var>node</var>'s <a for=tree>root</a>.
+   <li><p>If the <i>suppress observers flag</i> is unset, then <a>update slots</a> with « »,
+   <var>parent</var>, and « <var>node</var> ».

Why do we need to run it on both `parent` and `node`? We just inserted `node` into the same tree as `parent`.

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