Comment 41 for bug 1549483

I stand corrected on the point # 3 where the right answer is shared images "do not" come under this umbrella:

https://github.com/openstack/glance/blob/b55dd079e02a9c78b82d7e341d3cc51e6cbadab1/glance/db/sqlalchemy/api.py#L280-L291

So the case for community and shared images is same (i.e point #2 & #3 can be combined)

Overall, I think we can go with what we have plus the changes Brian suggested 36, 37 and 39.