Accessing dynamically-added repeated template elements by ID

[bla...@google.com]

Heya! Still somewhat new to Polymer so I'm pretty sure I'm doing something wrong with binding, templating, models, etc.  But here's what I'd like to do in a nutshell... given a template within another template, I'd like to be able to access elements that are added after initialization by ID.  In other words, given this:

<template>

  <template repeat="{{a in myList}}">

    <span id="element{{a}}">Span {{a}}</span>

  </template>

</template>

myList: [1]

I see a span tag with ID element1 and can access it just like I expect to with this.$.element1. However, when I dynamically add subsequent elements to myList (e.g. this.myList.push(2)), I can't seem to access them; this.$.element1 is still mapped correctly, but this.$.element2 is nowhere to be found.  

I've put together a fiddle that describes the problem.  Click Add Elements to add elements to the list, the click Test Results and check the console for my thought process.

Is there something additional I need to do to the model to get similar access to this.$.element2?  I can access it through this.shadowRoot.querySelector('#element2'), but I'm wondering why I don't need to do that for element1.  Thanks!

[Eric Bidelman]

Automatic node finding is not supported with dynamically created content. See https://github.com/Polymer/polymer/issues/642. Instead, you can use qS() directly: 

<div id="container">

 <template repeat="{{a in myList}}">

    <span id="element{{a}}">Span {{a}}</span>

  </template>

</div>

this.$.container.querySelector('#element1')

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