assign true to force_return param in feature_value loop

core/lib/Thelia/Core/Template/Loop/FeatureValue.php

@@ -67,7 +67,8 @@ class FeatureValue extends BaseI18nLoop implements PropelSearchLoopInterface
                     new Type\EnumListType(array('alpha', 'alpha_reverse', 'manual', 'manual_reverse'))
                 ),
                 'manual'
-            )
+            ),
+            Argument::createBooleanTypeArgument('force_return', true)
         );
     }