Commented Issue: CascadingDropDown values resetting on Postback [20137]

I have two CascadingDropDown controls on a page that is within an updatePanel. I have a save button that is also within the updatePanel. When the save button is pressed, the record is saved properly but the drop down values are not retained. Is there a work around for this?
Comments: I have the same problem when using the CascadingDropDown inside a user control. Has this problem never been fixed since 2008?