Comment 1 for bug 1619606

I believe this is an actual bug. I tested this on my debstack on in an ubuntu environment running on vmware 14.04 and when I ran the command to snapshot the instance booted from volume from two different command prompts at almost the same time. When I did this I had multiple 'cirros-rootfs' now booted on my sidebar yet when I delete the instance and it's associated images only one of the 'cirros-rootfs' volumes would be deleted.