title: Finding the last element with the same class in Capybara and filling it with some text
body: <p>I've following markup:</p>
  
  <pre><code>&lt;div class='foo'&gt;
    &lt;form&gt;
      &lt;input class='bar' type='text'&gt;
    &lt;/form&gt;
  &lt;div/&gt;
  
  &lt;div class='foo'&gt;
    &lt;form&gt;
      &lt;input class='bar' type='text'&gt;
    &lt;/form&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>I'd like to fill input in the second <code>.foo</code> container. How I can achieve this in Capybara ?</p>