title: Certain Drupal Backend Processes redirect to old domain
body: <p>Recently, after finishing our new drupal site, we made a copy of it to use as a staging site.  We assigned it to a different url (<code>new.domain.com/site</code> versus <code>old.domain.com/site</code>). </p>
  
  <p>As recommended, I changed the <code>$base_url</code> in the settings.php file to point to <code>new.domain.com/site</code> and that fixed most of the issues. The problem now is, whenever I make changes in the drupal backend, it wants to redirect back to <code>old.domain.com/site</code>. It looks like the change does go through, but it's still gets confusing and is an issue. </p>
  
  <p>Where would I go to fix this? I tried the .htaccess already and it doesn't offer any clues. </p>