Index: filefield.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/filefield/filefield.module,v
retrieving revision 1.197
diff -u -r1.197 filefield.module
--- filefield.module	16 Apr 2009 01:00:59 -0000	1.197
+++ filefield.module	14 May 2009 17:59:44 -0000
@@ -357,6 +357,19 @@
 }
 
 /**
+ * Implementation of CCK's hook_content_diff_values().
+ */
+function filefield_content_diff_values($node, $field, $items) {
+  $return = array();
+  foreach ($items as $item) {
+    if (is_array($item) && !empty($item['filepath'])) {
+      $return[] = $item['filepath'];
+    }
+  }
+  return $return;
+}
+
+/**
  * Implementation of CCK's hook_default_value().
  *
  * Note this is a widget-level hook, so it does not affect ImageField or other
