DescribeVolume returns owner as the user that created the volume, but not the project

An example:

[status] => in-use (testuser, nova-compute2, i-00000002[nova-compute2], /dev/vdb)

This makes it difficult to figure out which project a particular volume is associated with. Instances, on the other hand specifically return a project as the owner (in a separate attribute at that):

[ownerId] => testproject

Similarly, addresses also report the project as an owner:

[instanceId] => i-00000002 (testproject)

It would be useful for volumes to return the owner as the project instead of the user. Alternatively, adding the project instead of replacing the user would work.

It would really be ideal for all resources to return an owner attribute, with the project as the value.