Stock inventory reindex bug

[Nix-id]

Incorrect cleaning previous index's

Preconditions

Magento 2.2.0

Steps to reproduce

in Magento\CatalogInventory\Model\ResourceModel\Indexer\Stock\DefaultStock

magento2/app/code/Magento/CatalogInventory/Model/ResourceModel/Indexer/Stock/DefaultStock.php

Line 289 in 44d2562

protected function _updateIndex($entityIds)

Expected result

Method deleteOldRecords should be called before all _updateIndexTable calls.

Actual result

Method deleteOldRecords is called after one of _updateIndexTable calls.

also can you change 'private' method and vars in this class to 'protected'? for redeclare thiss class as 'extended' for use with 'di.xml'

[magento-engcom-team]

@Nix-id, thank you for your report.
Please use the issue reporting guidelines to report an issue. Please, edit issue description and include the preconditions, the steps required to reproduce, the actual result, and the expected result.
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• Preconditions: Magento version
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