Wrong element is getting event listeners.

[necat1]

When I have div with click event listener:
<div id="1"></div>
And I construct new document with added div above previous one, so new document looks like:

<div></div>
<div id="1"></div>

So when i replace current document with new document, event listener is now on div without id, and div with id 1 has no event listener:

diff(document, newDoc);

But when div with id is above the newly added element, than the div keeps the event listener like expected:

<div id="1"></div>
<div></div>