I can't rename a node inside dhcp-server config:
# edit service dhcp-server
# copy shared-network-name VLAN-600 to shared-network-name VLAN-900
# edit shared-network-name VLAN-900
# rename subnet 172.28.60.0/24 to subnet 172.28.90.0/24
Rename failed
# show | head -n1
+subnet 172.28.60.0/24 {