itm-state:dpn-endpoints are nor updated when by putting an new vtep

By PUT
http://odl/restconf/config/itm:transport-zones/transport-zone/TZA/subnets/192.168.2.0%2F24/
{"subnets":[{
"prefix": "192.168.2.0/24",
"vlan-id": 103,
"gateway-ip": "0.0.0.0",
"vteps": [

{ "ip-address": "192.168.2.3", "dpn-id": "271437951926862", "portname": "phy0" }

,

{ "ip-address": "192.168.2.2", "dpn-id": "81841297924941", "portname": "phy0" }

]
}]}

The dpn-endpoints are not updated:
http://odl/restconf/config/itm-state:dpn-endpoints/