fix(form): duplication error

fix #2448

Signed-off-by: Thierry Bugier <tbugier@teclib.com>

Author: btry

inc/form.class.php

@@ -1670,16 +1670,16 @@ public function export(bool $remove_uuid = false): array {
       $export = $this->fields;
 
       // replace entity id
-      $export['_entity']
-         = Dropdown::getDropdownName(Entity::getTable(),
-                                       $export['entities_id']);
+      /** @var Entity */
+      $entity = Entity::getById($export['entities_id']);
+      $export['_entity'] = $entity->fields['completename'];
 
       // replace form category id
       $export['_plugin_formcreator_category'] = '';
-      if ($export['plugin_formcreator_categories_id'] > 0) {
-         $export['_plugin_formcreator_category']
-            = Dropdown::getDropdownName(PluginFormcreatorCategory::getTable(),
-                                        $export['plugin_formcreator_categories_id']);
+      /** @var PluginFormcreatorCategory */
+      $formCategory = PluginFormcreatorCategory::getById($export['plugin_formcreator_categories_id']);
+      if ($formCategory instanceof CommonDBTM) {
+         $export['_plugin_formcreator_category'] = $formCategory->fiels['completename'];
       }
 
       // remove non needed keys