[DSC-1979] Added consents filter to prevent null values in observable

Author: Simone-Ramundi

src/app/shared/object-list/search-result-list-element/item-search-result/item-types/item/item-search-result-list-element.component.ts

@@ -15,7 +15,7 @@ import { TruncatableService } from '../../../../../truncatable/truncatable.servi
 import { DSONameService } from '../../../../../../core/breadcrumbs/dso-name.service';
 import { APP_CONFIG, AppConfig } from '../../../../../../../config/app-config.interface';
 import { getFirstSucceededRemoteListPayload } from '../../../../../../core/shared/operators';
-import { map } from 'rxjs/operators';
+import { filter, map } from 'rxjs/operators';
 
 @listableObjectComponent('PublicationSearchResult', ViewMode.ListElement)
 @listableObjectComponent(ItemSearchResult, ViewMode.ListElement)
@@ -69,7 +69,9 @@ export class ItemSearchResultListElementComponent extends SearchResultListElemen
       this.klaroService.watchConsentUpdates();
 
       this.hasLoadedThirdPartyMetrics$ = combineLatest([
-        this.klaroService.consentsUpdates$,
+        this.klaroService.consentsUpdates$.pipe(
+          filter(consents => consents != null)
+        ),
         this.dso.metrics?.pipe(
           getFirstSucceededRemoteListPayload(),
           map(metrics => {