ISSUE-9799: Show related products ordered by position

[sheepfy]

Fix issue #9799

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[Stepa4man]

@magento run all tests

[Stepa4man]

Hi @sheepfy
Thanks for your contribution

[magento-engcom-team]

Hi @Stepa4man, thank you for the review.
ENGCOM-8830 has been created to process this Pull Request
✳️ @Stepa4man, could you please add one of the following labels to the Pull Request?

Label	Description
Auto-Tests: Covered	All changes in Pull Request is covered by auto-tests
Auto-Tests: Not Covered	Changes in Pull Request requires coverage by auto-tests
Auto-Tests: Not Required	Changes in Pull Request does not require coverage by auto-tests

[andrewbess]

This PR is merged.
Please reopen if it needed

[sheepfy]

@andrewbess
Doesn't seem to be merged as the changes are missing from 2.4-develop latest

https://github.com/magento/magento2/blob/2.4-develop/app/code/Magento/Catalog/Model/ProductLink/CollectionProvider/LinkedMapProvider.php

[sheepfy]

cc @Stepa4man

[Stepa4man]

@sheepfy Have no clue what's going on here;)
@andrewbess, bro, can you shed some light with us, please:)

[andrewbess]

Hello @sheepfy @Stepa4man

Thank you guys for your attentiveness.
Github showed me that this PR was already merged.
Also, I cannot reopen it due to Github shows me the next message "The repository that submitted this pull request has been deleted."

Perhaps this is the problem.

Also, I think the main reason why this PR will not be take further is: "issue is closed". Maybe we need to reproduce the problem and reopen it.

@sheepfy Could you please resolve the problems and open new PR?

Thank you in advance.

[sheepfy]

@andrewbess
added new PR
#38380

Steps to replicate the issue are described in #9799
For short, the order is not kept for linked products, even if the order was changed from admin via drag and drop (don't exactly remember where, in admin or in frontend), when I'll have the time, I'll put my explanation for how to replicate this later when I'll got some spare time, but main explanation was described in the issue.

The change from this PR was the fix I've done for my client.