Comment 4 for bug 1906428

This looks more like an issue with cross cell resize.

The following pastebin shows example qemu-img commands from a failing run where the final cold migration / resize ends up using the original image with a fresh overlay, instead of the snapshot disk from the source host:

http://paste.openstack.org/show/800637/

I'm assuming that we've not passed the snapshot_id correctly as part of the cross cell resize:

https://github.com/openstack/nova/blob/f0efcae6975a99044ef7052453f905f60fcecac6/nova/compute/manager.py#L5906

Skipping the test for now and adding a DNM debug change to troubleshoot this more.