Incompatibitily with i18nmenu

Since acquia does not uses default primary-links variable it should use i18nmenu's api localizing menu when it's enabled.
Replacing the following code in template.php fixes the problem :

<?php
    $vars['primary_links_tree'] = menu_tree(variable_get('menu_primary_links_source', 'primary-links'));
?>

With :

<?php
  if (module_exists('i18nmenu') and 1==0) {
    $vars['primary_links_tree']=i18nmenu_translated_tree(variable_get('menu_primary_links_source', 'primary-links'));

  } else {
    $vars['primary_links_tree'] = menu_tree(variable_get('menu_primary_links_source', 'primary-links'));
  }
?>

For default variable another issue submitted to i18nmenu module. #514108: Primary and secondary links' menus translation