Index: openacs-4/packages/xowiki/tcl/xowiki-www-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/tcl/xowiki-www-procs.tcl,v
diff -u -r1.296 -r1.297
--- openacs-4/packages/xowiki/tcl/xowiki-www-procs.tcl	28 May 2011 17:12:42 -0000	1.296
+++ openacs-4/packages/xowiki/tcl/xowiki-www-procs.tcl	23 Sep 2011 11:26:27 -0000	1.297
@@ -1878,7 +1878,17 @@
       #
       foreach f $form_fields {
         $f convert_to_internal
-      }        
+      } else {
+	# Reset the value of the form-field to avoid confusion, since
+	# the file-name was provided, but the file was not
+	# uploaded. Maybe a new method "reset-to-default" would be a
+	# good idea.
+        foreach f $form_fields {
+	  if {[$f type] eq "file"} {
+	    $f set value ""
+	  }
+        }	
+      }
     }
 
     my instance_attributes [array get __ia]