fix document list memory leak (#8823)

lib/content-services/src/lib/document-list/components/document-list.component.ts

@@ -374,7 +374,9 @@ export class DocumentListComponent implements OnInit, OnChanges, OnDestroy, Afte
                 private lockService: LockService,
                 private dialog: MatDialog) {
 
-        this.nodeService.nodeUpdated.subscribe((node) => {
+        this.nodeService.nodeUpdated
+            .pipe(takeUntil(this.onDestroy$))
+            .subscribe((node) => {
                 this.dataTableService.rowUpdate.next({id: node.id, obj: {entry: node}});
             });