fix search autocomplete duplicates

web/modules/custom/materio_sapi/src/Controller/FormAutocomplete.php

@@ -45,7 +45,8 @@ class FormAutocomplete extends ControllerBase {
         // ->addCondition('author', 1, '<>');
 
       // Restrict the search to specific languages.
-      // $query->setLanguages(['de', 'it']);
+      $lang =  \Drupal::languageManager()->getCurrentLanguage()->getId();
+      $query->setLanguages([$lang]);
 
       // Do paging.
       $query->range(0, 10);