I just found out something which is not OK (at least not for me ...)
Using 0.15.4527 on WIndows 7 - 64 bit.
If you draw one closed shape with sketcher and use Revolve in Part Workbench with "create solid" ticked,
you get a solid.
If you draw more than one closed shapes, use revolve with "create solid" ticked, you won't get solids.
You will get shell objects.
Part Design would refuse Revolution with more than one closed shape.
Part should show the same behaviour or should show a warning and disable the "create solid" command
> whatever you think is more appropriate or easier to implement
Look here for proof:
Thanks for your time.