Comment 7 for bug 1626173

Reviewed: https://review.openstack.org/374918
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=fb26ec9da5ee6fd051d3d0b39588972ecc86f1d9
Submitter: Jenkins
Branch: stable/newton

commit fb26ec9da5ee6fd051d3d0b39588972ecc86f1d9
Author: Crag Wolfe <email address hidden>
Date: Wed Sep 21 19:06:36 2016 -0400

    Do not attempt deletion of a DELETE_COMPLETE stack in service api

    A stack may be in transient state where it is DELETE_COMPLETE, but has
    has not actually been soft-deleted yet. For the purposes of
    delete_stack in service.py, consider a DELETE_COMPLETE stack as
    equivalent to a soft-deleted one (it soon will be), thereby avoiding a
    race where we would have attempted to update the stack, running into a
    foreign-key constraint issue for a non-existing user_cred.

    Change-Id: Iec021e6a0df262d447fdf9ee1789603c7a1c55f8
    Closes-Bug: #1626173
    Closes-Bug: #1626107
    (cherry picked from commit e1f161a19a9eef3edb05612aad905e2e7ae7c674)