TYPO3 Core

In datahandler isertDB the return value of checkStoredRecord is not being checked (if it's null or array) which then results in calling

$this->getRecordHistoryStore()->addRecord($table, $id, $newRow);

with a wrong type (null) for $newRow.

This causes error like:

Argument 3 passed to TYPO3\CMS\Core\DataHandling\History\RecordHistoryStore::addRecord() must be of the type array, null given,