Creating flavors with --id auto

[Gregory Thiemonge]

The doc on flavors (https://docs.openstack.org/nova/latest/user/flavors.html) is inaccurate.

It mentions that Flavor ID is:

| Unique ID (integer or UUID) for the new flavor. This property is required. If specifying ‘auto’, a UUID will be automatically generated.

But it seems that the "auto" keyword is no longer supported.

The Octavia devstack plugin uses it:

https://opendev.org/openstack/octavia/src/branch/master/devstack/plugin.sh#L610

but it generates a flavor with the id "auto":

$ openstack flavor show m1.amphora
+----------------------------+---------------------------------+
| Field | Value |
+----------------------------+---------------------------------+
| OS-FLV-DISABLED:disabled | False |
| OS-FLV-EXT-DATA:ephemeral | 0 |
| access_project_ids | [] |
| description | None |
| disk | 3 |
| id | auto |
| name | m1.amphora |
| os-flavor-access:is_public | False |
| properties | disk='5', hw_rng:allowed='True' |
| ram | 1024 |
| rxtx_factor | 1.0 |
| swap | 0 |
| vcpus | 1 |
+----------------------------+---------------------------------+

Can you clarify that? is it a doc bug? or a bug in the client?