Corrected RackGroupNestedSerializer() definition
Corrected RackGroupNestedSerializer() definition

digitalocean/netbox,rfdrake/netbox,Alphalink/netbox,snazy2000/netbox,lampwins/netbox,snazy2000/netbox,lampwins/netbox,rfdrake/netbox,digitalocean/netbox,Alphalink/netbox,digitalocean/netbox,Alphalink/netbox,rfdrake/netbox,rfdrake/netbox,digitalocean/netbox,Alphalink/netbox,lampwins/netbox,lampwins/netbox,snazy2000/netbox,snazy2000/netbox