title: Wordpress gallery shortcode and get_page
body: <p>I render some pages to a content slider like this:</p>
  
  <pre><code>function tonal_get_slide($postID) {
      $page_data = get_page( $postID );
      $title = $page_data-&gt;post_title;
      $content = "&lt;h2&gt;" . $title . "&lt;/h2&gt;";
      $content .= apply_filters('the_content', $page_data-&gt;post_content);
      return $content;
  }
  </code></pre>
  
  <p>All my self-created shortcodes work like a charm, but the gallery-shortcode gets ignored (it does return nothing, not the shortcode, no empty <code>&lt;p&gt;</code>, nothing...)</p>
  
  <p>Any help on would be appreciated,
  Thanks</p>