Comment 2 for bug 1292589

A few more random things:
 * This used to work in Havana (as set up by devstack, in any case)
 * In the Horizon code, the quota-class name for the defaults is assumed to be "default". Then it becomes possible to reproduce the issue on the command-line with `nova quota-class-show default` and `nova quota-class-update <etc>` (for instance following the instructions at http://docs.openstack.org/user-guide-admin/content/cli_set_quotas.html#cli_set_compute_tenant_quotas_procedure )
 * The quota_classes table is empty in the nova database (when it wasn't the case in devstack-havana).

I don't have time to look into this more right now, so if someone else does feel free to pick it up. Thanks!