[835] Auto-save in new Item Submission form breaks the form

Disable autosave when timer is equal to 0

src/app/submission/submission.service.spec.ts

@@ -915,6 +915,13 @@ describe('SubmissionService test suite', () => {
   });
 
   describe('startAutoSave', () => {
+
+    let environmentAutoSaveTimerOriginalValue;
+
+    beforeEach(() => {
+      environmentAutoSaveTimerOriginalValue = environment.submission.autosave.timer;
+    });
+
     it('should start Auto Save', fakeAsync(() => {
       const duration = environment.submission.autosave.timer * (1000 * 60);
 
@@ -930,6 +937,19 @@ describe('SubmissionService test suite', () => {
       sub.unsubscribe();
       (service as any).autoSaveSub.unsubscribe();
     }));
+
+    it('should not start Auto Save if timer is 0', fakeAsync(() => {
+      environment.submission.autosave.timer = 0;
+
+      service.startAutoSave('826');
+
+      expect((service as any).autoSaveSub).toBeUndefined();
+    }));
+
+    afterEach(() => {
+      environment.submission.autosave.timer = environmentAutoSaveTimerOriginalValue;
+    })
+
   });
 
   describe('stopAutoSave', () => {

src/app/submission/submission.service.ts

@@ -562,6 +562,10 @@ export class SubmissionService {
    */
   startAutoSave(submissionId) {
     this.stopAutoSave();
+    if (environment.submission.autosave.timer === 0) {
+      return;
+    }
+
     // AUTOSAVE submission
     // Retrieve interval from config and convert to milliseconds
     const duration = environment.submission.autosave.timer * (1000 * 60);