Make cloning of jobsets work again.

(cherry picked from commit 706551453800fb3a4bb3d8b681dad157a8cea98b)

Created by  Rob Vermaas  on July 14, 2015
DGHAIZTOPYJCEG7MRADPTCNX2NPS75IWGWHSPHCWAW4BYATCPH2QC
Change contents