SubscriptionRequest#includedSubscriptionEventType includes a singular string, when it should be an array of @id

Subscription requests created by NE:ONE include a singular string in property includedSubscriptionEventType. However, according to API specs and ontology(https://onerecord.iata.org/ns/api/index-en.html#includeSubscriptionEventType), it should be an array of @id.

This causes errors in parsing and handling subscription requests originating from NE:ONE.

NE:ONE:

{
  "@id" : "neone:19a7f220-d1de-4dc9-ba73-9bad6733a924",
  "@type" : "Subscription",
  "hasDescription" : "some description",
  "hasSubscriber" : {
    "@id" : "http://localhost:3001/logistics-objects/_data-holder"
  },
  "hasSupportedContentType" : [ "application/ld+json", "application/x-turtle", "text/turtle" ],
  "hasTopic" : "https://onerecord.iata.org/ns/cargo#Piece",
  "hasTopicType" : {
    "@id" : "https://onerecord.iata.org/ns/api#LOGISTICS_OBJECT_TYPE"
  },
  "includeSubscriptionEventType" : "https://onerecord.iata.org/ns/api#LOGISTICS_OBJECT_CREATED",
  "sendLogisticsObjectBody" : {
    "@type" : "http://www.w3.org/2001/XMLSchema#boolean",
    "@value" : "true"
  },
  "@context" : {
    "@vocab" : "https://onerecord.iata.org/ns/api#"
  }
}

ONE Record API specs:

{
  "@context": {
    "cargo": "https://onerecord.iata.org/ns/cargo#",
    "api": "https://onerecord.iata.org/ns/api#",
    "publisher": "https://1r.example.com/",
    "subscriber": "https://1r.example.com/"
  },
  "@id": "publisher:subscriptions/5f1a4869-e324-45b1-9ab0-60271ba54185",
  "@type": "Subscription",
  "api:contentType": "application/ld+json",
  "api:hasSubscriber": {
    "@id": "subscriber:logistics-objects/957e2622-9d31-493b-8b8f-3c805064dbda"
  },
  "api:includeSubscriptionEventType": [
    {
      "@id": "api:LOGISTICS_OBJECT_UPDATED"
    },
    {
      "@id": "api:LOGISTICS_OBJECT_CREATED"
    },
    {
      "@id": "api:LOGISTICS_EVENT_RECEIVED"
    }
  ],
  "api:hasTopicType": {
    "@id": "api:LOGISTICS_OBJECT_TYPE"
  },
  "api:hasTopic": {
    "@type": "http://www.w3.org/2001/XMLSchema#anyURI",
    "@value": "https://onerecord.iata.org/ns/cargo#Shipment"
  }
}