I suspect that this one should be reported already, but I'd report this issue nevertheless.
After 'Revert to Launch', payload in cargo bay gets draggy(Large reaction wheel in this case). It does not happen when the cargo bay is not the root part of the craft.
Here's the screenshots to confirm this issue.
Before the 'Revert to Launch':
After the 'Revert to Launch':
Here's the craft file: http://pastebin.com/YkVZPzCA
I'm using latest version of 1.2.2, with V.O.I.D and Editor Extension Redux installed. I think this should happen in stock, though.