title: Wordpress wp_query orderby not working
body: <p>I am trying to get ordering working in wp_query, but posts are still being ordered with default settings (just tag__in is working). SQL query for posts looks like this:</p>
  
  <pre><code>string(379) "SELECT SQL_CALC_FOUND_ROWS wp_posts.ID FROM wp_posts INNER JOIN wp_term_relationships ON (wp_posts.ID = wp_term_relationships.object_id) WHERE 1=1 AND ( wp_term_relationships.term_taxonomy_id IN (81) ) AND wp_posts.post_type = 'post' AND (wp_posts.post_status = 'publish' OR wp_posts.post_status = 'private') GROUP BY wp_posts.ID ORDER BY wp_posts.post_date DESC LIMIT 0, 3" 
  </code></pre>
  
  <p>Here is code snippet:</p>
  
  <pre><code>remove_all_filters('posts_orderby');
  $tag = get_term_by('name', 'title_post', 'post_tag');
  $args=array(
              'order'=&gt;'ID',
              'orderby'=&gt;'ASC',
              'tag__in' =&gt; $tag,
              'posts_per_page'=&gt;3, // Number of related posts to display.
              'caller_get_posts'=&gt;1
  );
  
  $my_query = new wp_query( $args );
  var_dump($my_query-&gt;request);
  </code></pre>
  
  <p>Thanks!</p>