[Nnrf_NFManagement] PATCH request with unknown operation serves a 400 response (R15.2.0)

TS29510_Nnrf_NFManagement_UpdateNFInstance_Bad_Request.txt

PATCH /nnrf-nfm/v1/nf-instances/80fd9293-7bc9-4fdf-8888-4a72e9f751d4 HTTP/1.1
Host: vdev-newedge0001.b-com.local:8180
Connection: keep-alive
Content-Length: 99
accept: application/json
DNT: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36
Content-Type: application/json-patch+json
Origin: http://vdev-newedge0001.b-com.local:8180
Referer: http://vdev-newedge0001.b-com.local:8180/
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9

[
 {
    "op": "unknown",
    "path": "/nfStatus",
    "from": null,
    "value": "SUSPENDED"
  }
]

HTTP/1.1 400 Bad Request
Connection: keep-alive
Access-Control-Allow-Origin: *
Access-Control-Allow-Headers: Content-Type, Authorization, Accept, Accept-Language
Content-Type: application/problem+json
Content-Length: 657
Access-Control-Allow-Methods: GET, PUT, POST, PATCH, DELETE, OPTIONS
Date: Wed, 13 May 2020 14:20:51 GMT

{
   "type":"InvalidDefinitionException",
   "title":"Cannot construct instance of `com.bcom.newedge._3gpp._5gc.nf.commons.models.PatchOperation`, problem: Unexpected value 'unknown'",
   "status":400,
   "detail":"Cannot construct instance of `com.bcom.newedge._3gpp._5gc.nf.commons.models.PatchOperation`, problem: Unexpected value 'unknown'",
   "instance":null,
   "cause":"Cannot construct instance of `com.bcom.newedge._3gpp._5gc.nf.commons.models.PatchOperation`, problem: Unexpected value 'unknown'",
   "invalidParams":[
      {
         "param":"op",
         "reason":"Cannot construct instance of `com.bcom.newedge._3gpp._5gc.nf.commons.models.PatchOperation`, problem: Unexpected value 'unknown'"
      }
   ]
}