Multiple `app/etc/di.xml` overridding preferences

[lbajsarowicz]

Preconditions (*)

Magento 2.4-develop
Magento OOTB should provide only 1 preference for each Interface in app/etc/di.xml as it's "base config"

Steps to reproduce (*)

Verify the contents of app/etc/di.xml

Expected result (*)

Only 1 preference for 1 Interface

Actual result (*)

magento2/app/etc/di.xml

Line 46 in 960a51f

<preference for="\Magento\Framework\Setup\ModuleDataSetupInterface" type="\Magento\Setup\Module\DataSetup" />

overridden by

magento2/app/etc/di.xml

Line 116 in 960a51f

<preference for="Magento\Framework\Setup\ModuleDataSetupInterface" type="Magento\Setup\Module\DataSetup" />

Possible that there are other issues like that. We need to add some kind of validation for di.xml to avoid such situations in future (CC: @lenaorobei )

[m2-assistant]

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[magento-engcom-team]

✅ Confirmed by @engcom-Alfa
Thank you for verifying the issue. Based on the provided information internal tickets MC-40269 were created

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