title: Is render method of a component run in react-virtualized rowRenderer
body: <p>I am using a List provided by <code>react-virtualized</code>. Inside the rowRenderer I return a more complex component. This component has some events defined for it. When an event is triggered, a part of the this component should be updated with new structure, e.g. a new input is rendered inside the row. This doesn't not seem to work when used inside the List.</p>
  
  <pre><code>&lt;List height={height} width={1800} rowCount={this.state.leads.length} rowHeight={rowHeight} rowRenderer={this.rowRenderer} /&gt;
  </code></pre>
  
  <p>Here's the rowRenderer:</p>
  
  <pre><code>rowRenderer(props) {
  
  let opacityvalue = 1
  if (this.state.deleted.indexOf(props.index) &gt;= 0) {
      opacityvalue = 0.3
  }
  
  return (
              &lt;LeadItem {...props}
              lead={this.state.leads[props.index]}
              leadKey={props.index}
              ...
              /&gt;
  )}
  </code></pre>
  
  <p>Here's the element that should show up when a specific event is triggered:</p>
  
  <pre><code>{self.props.lead.show ? &lt;Selectize
                          queryfield={'tags'}
                          handleChange={(e) =&gt; this.props.updateLeadData(self.props.leadKey, 'tags', 'update', e)}
                          value={self.props.lead.tags}
                          create={false}
                          persist="false"
                          multiple
                          options={self.props.TAGS}
                      /&gt; : &lt;div&gt;{taglist}&lt;/div&gt;}
  </code></pre>
  
  <p><strong>EDIT</strong>: Here's a simple example where I prove my point. 
  <a href="https://codesandbox.io/s/2o6v4my7pr" rel="nofollow noreferrer">https://codesandbox.io/s/2o6v4my7pr</a>
  When user presses on the button, there must appear a new element inside the row.</p>
  
  <p><strong>UPDATE</strong>:
  I see now that it's related to this: 
  <a href="https://github.com/bvaughn/react-virtualized#pure-components" rel="nofollow noreferrer">https://github.com/bvaughn/react-virtualized#pure-components</a></p>