fix(question): prevent double escaping of description

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

inc/question.class.php

@@ -953,7 +953,7 @@ public static function import(PluginFormcreatorLinker $linker, $input = [], $con
       }
 
       // escape text fields
-      foreach (['name', 'description', 'values', 'default_values', 'description'] as $key) {
+      foreach (['name', 'description', 'values', 'default_values'] as $key) {
          $input[$key] = $DB->escape($input[$key]);
       }