Cancel does not work as expected - interaction with autosave

[GoogleCodeExporter]

Right now the 'Cancel' button in cwm-data's ResponseEditor does not return the 
response to its pre-edit state.  Instead it only cancels changes after the most 
recent autosave.  This should be corrected.

Original issue reported on code.google.com by bgoldow...@gmail.com on 5 Dec 2011 at 2:54