#16298 this sould fix the issue and fix a test fails on https://githu…

[molneek]

…b.com/fratob85/magento2/tree/fix-switch-to-incorrect-store

Description

Fixed Issues (if relevant)

1. Magento sometimes doesn't select the correct store if the scope code is null #16298: Magento sometimes doesn't select the correct store if the scope code is null
2. Fixed PR https://github.com/fratob85/magento2/tree/fix-switch-to-incorrect-store

Manual testing scenarios

1. ...
2. ...

Contribution checklist

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)

[magento-cicd2]

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[magento-engcom-team]

Hi @molneek. Thank you for your contribution
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