Prevent options.success() from resetting cell selector back to first column

[Edmond]

I'm using autoSync:true so I can sync with the database after each cell update, but each time I call options.success() it resets the cell selctor to the first column of that row. If I don't report to the dataSource that the request has completed, it causes some strange behavior where clicking on the "Delete" button twice when there's a server error and a cancelChanges() on an error callback ends up deleting the record.

It looks like options.success() repaints the entire grid. How can I prevent this from happening?