It is possible to remove node name in any api version

[Vladyslav Drok]

The following piece of code in NodesController patch method checks that it is not possible to set an incorrect name:

        name = api_utils.get_patch_value(patch, '/name')
        if name:
            error_msg = _("Node %(node)s: Cannot change name to invalid "
                          "name '%(name)s'") % {'node': node_ident,
                                                'name': name}
            self._check_name_acceptable(name, error_msg)

But it does allow to remove name via patch operation, no matter what api version is specified.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/300983

[Vladyslav Drok (vdrok)]

On the meeting 12.04.2016 it was decided that it is a breaking change, that requires a new microversion, and adding that to fix this bug does not make much sense.