Description of problem:
When service is ordered from service catalog using the request on the service_templates subcollection, the data returned in response corresponds to the service_requests collection. However since no "href" is returned, it's hard to figure out that the response doesn't correspond to the originating subcollection (i.e. service_templates).

When the request is made on a resource under the service_templates subcollection, the correct "href" is returned.


Version-Release number of selected component (if applicable):
5.8.1.5


How reproducible:
very


Steps to Reproduce:
Order catalog item from the service_templates subcollection:

POST /api/service_catalogs/62/service_templates
{
  "action": "order",
  "resources": [{
    "href": "https://<address>/api/service_catalogs/:catalog_id/service_templates/:template_id"
  }]
}

Response:
{
    "results": [
        {
            "id": 27,
            "description": "Provisioning Service [item_4D2Nq] from [item_4D2Nq]",
...
<= no "href" is present - it should point to "https://<address>/api/service_requests/27", otherwise it's difficult to find out what resource does the id belongs to.

Compared to:
POST /api/service_catalogs/62/service_templates/:template_id
{ "action": "order" }

Response:
{
    "href": "https://<address>/api/service_requests/28",
    "id": 28,
    "description": "Provisioning Service [item_4D2Nq] from [item_4D2Nq]",
...
<= here the "href" is present