Service API: Cannot post data (Addresses, Child Organization, Contacts) to Organization

Description

Steps to reproduce:

1. Post an organization with the following data in the body (include address, child organization, contact)

   {

   "PrimaryKeyId": "414eef7b-e38c-44d9-a33f-c00343544db9",

   "Addresses": [

   {

   "AddressId": "85c338ad-e9d1-4e9d-9bc7-f1b651ac82df",

   "Modified": "2018-04-26T15:38:18.323+07:00",

   "Name": "Address 1",

   "FirstName": "Doan",

   "LastName": "Hieu",

   "CountryName": "Viet Nam",

   "CountryCode": "VNM",

   "City": "Ha Noi",

   "PostalCode": "10000",

   "Line1": "Thai Ha",

   "Line2": "Dong Da",

   "RegionName": null,

   "RegionCode": "20000",

   "Email": "hieu.doan@episerver.com",

   "ShippingDefault": true,

   "BillingDefault": true,

   "DaytimePhoneNumber": "123",

   "EveningPhoneNumber": "456",

   "Organization": null

   }

   ],

   "ChildOrganizations": [

   {

   "PrimaryKeyId": "14d76ec2-320f-4234-a607-8d661cec5e50",

   "Addresses": [],

   "ChildOrganizations": [],

   "Contacts": [],

   "OrganizationType": "Organization Unit",

   "OrgCustomerGroup": "Partner"

   }

   ],

   "Contacts": [

   {

   "PrimaryKeyId": "73e05bfe-17ae-401e-a689-405aaafb79ae",

   "Addresses": [],

   "FirstName": "Order",

   "LastName": "Manager",

   "Email": "manager@unknowdomain.domain",

   "RegistrationSource": null

   }

   ],

   "OrganizationType": "Organization",

   "OrgCustomerGroup": "Customer"

   }

Expected:
An organization with address, contact, child organization is created. Response returns all address, contact, child organization.

Actual:
Response does not include Address, Child organization, Contact.

{
    "PrimaryKeyId": "414eef7b-e38c-44d9-a33f-c00343544db9",
    "Addresses": [],
    "ChildOrganizations": [],
    "Contacts": [],
    "OrganizationType": "Organization",
    "OrgCustomerGroup": "Customer"
}