[Magento 2.3.x] Data/Schema Patches getAliases() causes errors during `setup:upgrade`

[PauloPhagula]

Preconditions (*)

Project Environment

Magento 2.4-develop
Magento Version: 2.3.x CE
PHP: 7.4
Database: MySQL 8.0
OS: CentOS 7
Caching: Varnish Cache and OPcache

Steps to reproduce (*)

1. Create a schema patch with a class name e.g. ExampleSchemaPatch
2. Add a logger inside the apply method for the schema patch class to indicate that the apply method was executed
3. Run setup:upgrade
4. Check the patch_list table a fully qualified class name for the patch class would be present
5. Check the log file to confirm that the apply method for the patch was executed
6. Now change the class name of the applied patch to some something else e.g. ChangedExampleSchemaPatch
7. Added the old class name as an array item for the return array for the getAliases() method

public function getAliases()
{
    return [
        ExampleSchemaPatch::class
    ];
}

8. Run setup upgrade one more time

Expected result (*)

1. The second setup:upgrade should run normally with no errors whatsoever

Actual result (*)

1. setup:upgrade fails while applying patch. Mentioning that the original (now aliased) patch has already been applied

---

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• Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
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[m2-assistant]

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[m2-assistant]

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