Comment 6 for bug 1478480

Reviewed: https://review.openstack.org/206910
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=4a8282c42cc0306d9e2c155c700a5adb1bb59ae7
Submitter: Jenkins
Branch: stable/kilo

commit 4a8282c42cc0306d9e2c155c700a5adb1bb59ae7
Author: huangtianhua <email address hidden>
Date: Mon Jul 27 18:26:04 2015 +0800

    Correct stack identity when delete nested

    1. Update an aws asg with invalid 'VPCZoneIdentifier',
    the stack update failed.
    2. Update again, the stack is always in 'UPDATE_IN_PROGRESS'.

    We remove the backup resources first when updating,
    but the backup of stack_resource can't be deleted,
    due we set an incorrect name of stack_identity before
    rpc calling 'delete_stack', due the name is not match the
    nested_stack's name.

    Change-Id: I89966d0124607c233ac9a82f1ce14f4f2deb3f9b
    Closes-Bug: #1478480
    (cherry picked from commit ab234eb65871be3607a5702d6a01a6be5f6b59d5)