// list-template-manager.ts 119
switchMap(([{ changes, items }, strategy]) => {
          if (!changes) {
            return [];
          }

// list-template-manager.ts 119
switchMap(([{ changes, items }, strategy]) => {
          if (!changes) {
            return of([]); // of should be fine even though it completes since this gets ignored currently? Do we have to keep future rxComplete, rxError templates in mind and use NEVER.pipe(mapTo([])) instead??
          }