[Forwardport] magento/magento2#14465 Fix empty changelog tables after MySQL restart. #14636
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Original Pull Request
#14471
Leave at least one record after tebles cleanup.
Description
This pull request is related to the issue #14465.
The idea of the fix - leave at least one record in changelog tables.
So after restart of MySQL, tables will never by empty.
Fixed Issues (if relevant)
Manual testing scenarios
The test scenario is well described in the issue.
Contribution checklist