Error sending many notifications in ActiveRecordChannel

[gitrequests]

Find this issue when applying batch action...

Try to send notifications like this:

Yii::$app->notifier->send($user1, $notification1);
Yii::$app->notifier->send($user1, $notification2);
Yii::$app->notifier->send($user2, $notification3);

I know that notifications may sending in array... But it is impossible in some use cases.

Right now, if many noty sending in this way, second query (and the following) in ActiveRecordChannel.php loads Existing Model! And we do insert() function on Existing model!

In my project this issue do not sending some data in Database ONLY in batch insert (there is some other fields in DB, since i use a different ActiveRecordChannel):

My solution is to create new Model before load Data (Change in ActiveRecordChannel.php from line 46):

$class = $this->model;
$model = \Yii::createObject($class::className());

if ($model->load($data, '')) {
      return $model->insert();
}

This issue need to checking by contributors, since i use extending ActiveRecordChannel. But inserting on existing Model is not right way.