--- feedapi_mapper_date.inc.orig	2009-06-10 17:44:29.000000000 +0200
+++ feedapi_mapper_date.inc	2009-06-10 17:18:57.000000000 +0200
@@ -257,10 +257,10 @@
   if (empty($node->$field_name)) {
     $date = new date_constructor();
     $date->construct($field);
+    $date->set_value($sub_field, $feed_element);
+    $date->build();
+    $node->$field_name = array($date->value);
   }
-  $date->set_value($sub_field, $feed_element);
-  $date->build();
-  $node->$field_name = array($date->value);
   return $node;
 }