19482 increase product quantity with disabled manage stock when place order is failed

[agorbulin]

Magento increments stock for products for which stock managing is disabled in case, when restore stock qty after failed placing order

Fixed Issues (if relevant)

1. Increase product quantity with disabled Manage Stock when place order is failed #19482: Increase product quantity with disabled Manage Stock when place order is failed

Manual testing scenarios (*)

1. In the admin panel set for a product Manage Stock: No and Quantity: 100
2. Place an order with this product via PayPal, but with a card that does not have enough money to pay for the order
   Expected result:
   Product Quantity is 100

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-engcom-team]

Hi @agorbulin. Thank you for your contribution
Here is some useful tips how you can test your changes using Magento test environment.
Add the comment under your pull request to deploy test or vanilla Magento instance:

• @magento-engcom-team give me test instance - deploy test instance based on PR changes
• @magento-engcom-team give me 2.3-develop instance - deploy vanilla Magento instance

For more details, please, review the Magento Contributor Assistant documentation

[magento-engcom-team]

Hi @VladimirZaets, thank you for the review.
ENGCOM-3771 has been created to process this Pull Request

[ghost]

Hi @agorbulin, thank you for your contribution!
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[magento-engcom-team]

Hi @agorbulin. Thank you for your contribution.
We will aim to release these changes as part of 2.3.1.
Please check the release notes for final confirmation.