uploader.result.listen((result) calls too many times. version flutter_uploader_beta6

StreamSubscription _resultSubscription;

_resultSubscription = uploader.result.listen((result) async {
print("Result Result Result Result Result");
print("onResponse : " + result.response);
print(result);
print(
'IN MAIN APP: ${result.taskId}, status: ${result.status}, statusCode: ${result.statusCode}, headers: ${result.headers}');

var tmp = {}..addAll(_tasks);
tmp.putIfAbsent(result.taskId, () => UploadItem(result.taskId));
tmp[result.taskId] =
tmp[result.taskId].copyWith(status: result.status, response: result);

// setState(() => _tasks = tmp);
}, onError: (ex, stacktrace) {
print('exception: $ex');
print('stacktrace: $stacktrace' ?? 'no stacktrace');
});