Index: trunk/pstamp/scripts/pstampparse.pl
===================================================================
--- trunk/pstamp/scripts/pstampparse.pl	(revision 27783)
+++ trunk/pstamp/scripts/pstampparse.pl	(revision 27795)
@@ -536,6 +536,6 @@
     # XXX: this code is repeated in queueGetImageJobs we should encapsulate it in a subroutine and share it
     if ($stage ne 'raw') {
-        # not ready to handle diff update yet. May never support stack
-        my $allow_wait_for_update = (($stage ne 'stack') and ($stage ne 'diff'));
+        # updates for stack stage not supported yet
+        my $allow_wait_for_update = ($stage ne 'stack');
         my $run_state = $image->{state};
         my $data_state = $image->{data_state};
@@ -548,6 +548,5 @@
             $newState = 'stop';
             $fault = $PSTAMP_GONE;
-        } elsif ($allow_wait_for_update and 
-                (($data_state ne 'full') or ($need_magic and ($image->{magicked} < 0)))) {
+        } elsif (($data_state ne 'full') or ($need_magic and ($image->{magicked} < 0))) {
             if ($stage eq 'chip') {
                 my $burntool_state = $image->{burntool_state};
@@ -556,4 +555,9 @@
                     $fault = $PSTAMP_NOT_AVAILABLE;
                 }
+            } 
+            if (!$allow_wait_for_update) {
+                print STDERR "wait for update not supported for stage $stage yet\n";
+                $newState = 'stop';
+                $fault = $PSTAMP_NOT_AVAILABLE;
             }
             if (!$fault) {