[CST-5197] fix issue with uploading file during workflow

Author: atarix83

src/app/submission/form/submission-form.component.ts

@@ -155,7 +155,7 @@ export class SubmissionFormComponent implements OnChanges, OnDestroy {
 
       // init submission state
       this.subs.push(
-        this.halService.getEndpoint('workspaceitems').pipe(
+        this.halService.getEndpoint(this.submissionService.getSubmissionObjectLinkName()).pipe(
           filter((href: string) => isNotEmpty(href)),
           distinctUntilChanged())
           .subscribe((endpointURL) => {