Description of problem:

There is upstream bug [1] that describes the following issue:

"When rebuild an volume-backed instance using normal images from glance, nothing will be changed for the instance after rebuild except the image name will be added to the instance, the instance is actually again built using the same volume."

Upstream developers treat this bug as a "known limitaion" [2] that will be addressed at some point.

I would like to use this bug to request an RFE implementation and track this issue internally.

[1] https://bugs.launchpad.net/nova/+bug/1482040
[2] https://review.openstack.org/#/c/509282/1