Comment 13 for bug 648406

Denis: thank you for catching this. I'll now add a unit-test based on the Python snippet at the bottom to the build to catch it properly.

Originally the 0.70 packages were prepared 1 week ago and sent out for comments and review, with the necessary changes only committed locally to revision control. On Saturday morning the hard disk failed, taking the revision control that generated those 0.70 test releases with it. I spent around 5 hours trying to recover these trees from the failed disk and in the end re-did the changes from scratch. Evidently I rebuilt these from the wrong input. My apologies to yourself, and particularly to Dalton Maag who went to such effort to correct this at their end.