reload method
Implementation
@override
Future<void> reload({bool keepOffset = false, bool keepSelection = false}) async {
final opId = const Uuid().v4();
_currentOperationId = opId;
super.reload(keepOffset: keepOffset);
loading = true;
_items = await fetcher();
if (_currentOperationId != opId) {
return;
}
_maxItems = _items.length;
loading = false;
}