Breadcrumbs - задвоение категорий - Joomla 3.x: Установка, обновление и настройка

global $app;
$cmsPathway = $app->getPathway();
$cmsPathwayItems = $cmsPathway->getPathway();
$cmsPathwayLastItem = array_pop($cmsPathwayItems);
$cmsPathway->setPathway($cmsPathwayItems);

global $app;
$cmsPathway = $app->getPathway();
$cmsPathwayItems = $cmsPathway->getPathway();
$qty = count($cmsPathwayItems);
if($qty > 1){
   unset($cmsPathwayItems[$qty-1]);
   $cmsPathway->setPathway($cmsPathwayItems);
}

global $app;
$cmsPathway = $app->getPathway();
$cmsPathwayItems = $cmsPathway->getPathway();
$cmsPathwayLastItem = array_pop($cmsPathwayItems);

array_pop($cmsPathwayItems); // Попробуйте продублировать эту строку 0,1,2 раз

$cmsPathwayItems[] = $cmsPathwayLastItem;
$cmsPathway->setPathway($cmsPathwayItems);