We think this is best released to RHOS 8 by packaging python-heatclient-1.0.0. I'll test a scratch build and try it with the latest puddle.
testing..
[stack@instack ~]$ heat stack-delete overcloud Are you sure you want to delete this stack(s) [y/N]? n [stack@instack ~]$ heat stack-delete overcloud Are you sure you want to delete this stack(s) [y/N]? y +--------------------------------------+------------+-----------------+---------------------+--------------+ | id | stack_name | stack_status | creation_time | updated_time | +--------------------------------------+------------+-----------------+---------------------+--------------+ | aa744b66-c1f1-4a5c-ba64-8a75bf45457a | overcloud | CREATE_COMPLETE | 2016-03-29T11:10:36 | None | +--------------------------------------+------------+-----------------+---------------------+--------------+ The warning could be more prominent IMO, but this should solve the main problem.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHEA-2016-0603.html