bug: placeOrder backwards incompatible changes included in patch from v2.4.6-p7 -> v2.4.6-p8.

[damienwebdev]

As a developer, I want my app to continue working after I apply security patches.

1. Be on Magento v2.4.6-p7, with a working application.
2. Upgrade to v2.4.6-p8 on release day because there are security vulnerabilities.
3. Break existing user-facing workflows because semver doesn't matter and software is a meme.
4. Wonder how this commit made it into a security release.

For reproduction:

1. Run placeOrder on v2.4.6-p7 and expect an error graphql response.
2. Write code based on the behavior of v2.4.6-p7
3. Upgrade to v2.4.6-p8
4. Run placeOrder on v2.4.6-p7 and expect an error graphql response.
5. (BREAKING CHANGE) Get a "success" response with a null for data with a new "errors" key.

{
    "data": {
        "placeOrder": {
            "order": null,
            "__typename": "PlaceOrderOutput"
        }
    }
}

I'm getting painfully bored and tired of breaking applications because I try to have good security routines like applying security patches the day of release.

https://experienceleague.adobe.com/en/docs/commerce-operations/release/notes/security-patches/2-4-6-patches contains no mention of this BiC change.

If a change results in user programs breaking, it's a bug in the kernel. We never EVER blame the user programs. How hard can this be to understand?

Seriously. Do better.

[m2-assistant]

Hi @damienwebdev. Thank you for your report.
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