Index: filefield_widget.inc
===================================================================
--- filefield_widget.inc	(revision 1380)
+++ filefield_widget.inc	(working copy)
@@ -237,6 +237,14 @@
     // Load file if the FID has changed so that it can be saved by CCK.
     $file = field_file_load($item['fid']);
 
+    // If the entry exists, but the file is no longer available, field_file_load
+    // returns FALSE. This can happen, if the file was uploaded, and immediately 
+    // moved. Setting the file object to an empty array, better reflects that 
+    // a file doesn't exist, so the file entry shouldn't exist.
+    if (!$file) {
+      $file = array();
+    }
+
     // If the file entry doesn't exist, don't save anything.
     if (empty($file)) {
       $item = array();