title: Set form exposed filter default value
body: <p>Ajax form. Exposed filter with <code>-Any-</code>. In <code>hook_form_alter()</code> i write:</p>
  
  <pre><code>if ($form_id == 'views_exposed_form') {
      if ($form_state['view']-&gt;name == 'machinery') {
          $form['field_producer_tid']['#options']['All'] = t('-All-');
      }
      $form['field_producer_tid']['#default_value'] = "All";
      dsm($form);
  }
  </code></pre>
  
  <p>But default value is the second <code>&lt;option&gt;</code> from select list. Always. Any value which i assign is ignored. How should i set default value?</p>