Commented Issue: Issue when using StyleSheetTheme with the Accordian control. [22055]

Get "The TargetControlID of '_AccordionExtender' is not valid. The value cannot be null or empty." error when trying to apply an Accordian skin using StyleSheetTheme. Using Theme works fine.
Comments: Why ain't this fixed it was reported more than 3 years ago, and it contains a solution...