Merged in task/dspace-cris-2023_02_x/DSC-2441 (pull request DSpace#3394)

[DSC-2441] fix scope update

Approved-by: Andrea Barbasso

Author: FrancescoMolinaro

src/app/shared/search/search.component.spec.ts

@@ -285,7 +285,8 @@ describe('SearchComponent', () => {
     const expectedSearchOptions = Object.assign(paginatedSearchOptions$.value, {
       configuration: 'default',
       sort: sortOptionsList[0],
-      forcedEmbeddedKeys: ['metrics']
+      forcedEmbeddedKeys: ['metrics'],
+      scope: ''
     });
     expect(comp.currentConfiguration$).toBeObservable(cold('b', {
       b: 'default'

src/app/shared/search/search.component.ts

@@ -453,7 +453,7 @@ export class SearchComponent implements OnInit, OnDestroy {
     }
 
     this.currentScope$ = this.routeService.getQueryParameterValue('scope').pipe(
-      map((routeValue: string) => hasValue(routeValue) ? routeValue : this.scope),
+      map((routeValue: string) => hasValue(routeValue) ? routeValue : this.scope ?? ''),
     );
 
     this.isSidebarCollapsed$ = this.isSidebarCollapsed();