Configuration changed after update

[sfritzsche]

What I expected

We are currently updating various store regarding Magento 2.4.5-p3. The current AmazonPay configuration remains the same in terms of the rough intention.

What happened instead

After the first 3 magento instances we noticed in the frontend that in 2 instances where AmazonPay was enabled, Amazon Pay was suddenly disabled. In the 3rd instance AmazonPay was disabled before and enabled after the update.

Steps to reproduce the issue

Update amazon pay module from 5.14.3 to 5.15.0.

Your setup

• Magento version: 2.4.5-p3
• Amazon Pay Extension Version: 5.15.0
• Magento Edition: Community

Possible cause

https://github.com/amzn/amazon-payments-magento-2-plugin/blob/de386a5ba83177564f271faf84a72f8b117557eb/Setup/Patch/Data/PerformKeyUpgrade.php#L110

All Magento 2 instances were migrated in the past from Magento 1 via the standard upgrade path (data migration tool).

Problem

If, as is common in our stores, old/unused configuration settings from older modules are still present in our database, they will be reactivated with the patch. The mentioned place now ensures that for example the old configuration of "payment/amazon_payment/active" is converted to "payment/amazon_payment_v2/active".

Regardless of whether you had already made new settings for the new paths before.

Expectation

A check if the destination path already has a configuration.