Ensure item is also embedded in submission form

(cherry picked from commit bf4d04c)

Author: tdonohue

src/app/core/submission/submission-rest.service.spec.ts

@@ -26,7 +26,7 @@ describe('SubmissionRestService test suite', () => {
   const resourceEndpoint = 'workspaceitems';
   const resourceScope = '260';
   const body = { test: new FormFieldMetadataValueObject('test') };
-  const resourceHref = resourceEndpointURL + '/' + resourceEndpoint + '/' + resourceScope + '?embed=sections,collection';
+  const resourceHref = resourceEndpointURL + '/' + resourceEndpoint + '/' + resourceScope + '?embed=item,sections,collection';
   const timestampResponse = 1545994811992;
 
   function initTestService() {

src/app/core/submission/submission-rest.service.ts

@@ -70,7 +70,7 @@ export class SubmissionRestService {
    */
   protected getEndpointByIDHref(endpoint, resourceID, collectionId?: string): string {
     let url = isNotEmpty(resourceID) ? `${endpoint}/${resourceID}` : `${endpoint}`;
-    url = new URLCombiner(url, '?embed=sections,collection').toString();
+    url = new URLCombiner(url, '?embed=item,sections,collection').toString();
     if (collectionId) {
       url = new URLCombiner(url, `&owningCollection=${collectionId}`).toString();
     }