Comment 1 for bug 1751302

Ok, the notification is like this:

            [...]
                self._update_network_ports(device_details['network_id'],
                                           device_details['port_id'],
                                           device_details['device'])
                self.ext_manager.handle_port(self.context, device_details)
                registry.notify(local_resources.PORT_DEVICE,
                                events.AFTER_UPDATE, self,
                                context=self.context,
                                device_details=device_details)

In fact, in the environment this appears, there is an agent extension that modifies [1] device_details. Ouch.

Updating affected project accordingly...