Comment 8 for bug 1236868

Reviewed: https://review.openstack.org/50457
Committed: https://git.openstack.org/cgit/openstack/glance/commit/?id=345d8f7766aa06fa6654382efc480da493a3f2c8
Submitter: Jenkins
Branch: master

commit 345d8f7766aa06fa6654382efc480da493a3f2c8
Author: Edward Hope-Morley <email address hidden>
Date: Tue Oct 8 20:41:26 2013 +0100

    Fix image killed after deletion

    If an image upload fails after the image was deleted during
    the upload, the image status currently gets set to 'deleted'
    then 'killed' once the upload fails. This patch fixes this so
    that if the image was deleted it stays in 'deleted' state.

    Permitted from_states for transitioning to 'killed' are
    'queued' and 'saving'. We now enforce this transition and
    raise an exception if it is violated.

    Closes-Bug: 1236868
    Co-authored-by: Hirofumi Ichihara <email address hidden>
    Co-authored-by: Zhi Yan Liu <email address hidden>
    Change-Id: I5552220ce264c0d09780bbd0eb7610e7cff0b820