Comment 1 for bug 1412394

The behaviour is based on user configuration [1]. If the configuration allows for additional properties, this won't be a problem. We should document what we accept/require but I don't think this should block the progress on the tempest review to use *valid* values for parameters sent while testing.

[1]: https://github.com/openstack/glance/blob/ce7593172e9f0d67103502e66fd388c91076fd37/glance/api/v2/images.py#L863