title: Template render error
body: <p>I'm using nunjucks to render some variables:</p>
  
  <pre><code>    &lt;div class="zoomable zoomable-{{ slide.index }}"&gt; &lt;&lt; this works
  
          {% if slide.temp is none %} &lt;&lt; this doesn't
              {% include "layouts/"+{{slide.layout}} %} &lt;&lt; this doesn't
          {% endif %}
  
      &lt;/div&gt;
  </code></pre>
  
  <p>When the JS calls nunjucks.render, I get the following error:</p>
  
  <p><code>parseAggregate: expected colon after dict key</code> on the <code>include</code></p>
  
  <p>There are two issues with this:</p>
  
  <ul>
  <li>It's not supposed to skip the condition, because the property <code>temp</code>
  doesn't exist.</li>
  <li>Is it not letting me access the <code>slide</code> properties? Because
  <code>slide.layout</code> is valid</li>
  </ul>
  
  <p>Am I doing something wrong?</p>