OpenApi export command does not work

[Univalgo]

API Platform version(s) affected: 3.1.9

Description
The autoloader expected class "ApiPlatform\Symfony\Bundle\Command\OpenApiCommand" to be defined in file "/app/vendor/composer/../api-platform/core/src/Symfony/Bundle/Command/OpenA
piCommand.php". The file was found but the class was not in it, the class name or namespace probably has a typo.

How to reproduce
Just install symfony 6.2 with api-platform >3.1.7 and try to run the command api:openapi:export

[aharabara]

I have the same issue when I try to run php ./bin/console debug (which should fail with a list of possible autocompletes):

 The autoloader expected class "ApiPlatform\Symfony\Bundle\Command\OpenApiCommand" to be defined in file "/srv/api/vendor/composer/../api-platform/core/src/Symfony/Bundle/Command/OpenApiCommand.php".  
   The file was found but the class was not in it, the class name or namespace probably has a typo. 

I did a small research and seems that it is related to this construction :

class_exists(\ApiPlatform\OpenApi\Command\OpenApiCommand::class);

if (false) {
    final class OpenApiCommand extends \ApiPlatform\OpenApi\Command\OpenApiCommand
    {
    }
}

in vendor/api-platform/core/src/Symfony/Bundle/Command/OpenApiCommand.php file. I saw a similar thing solved in changelog of v3.1.9 and I have a feeling it is related to some sort of a build tool that replaced
if(!class_exists(...)){...}
with
class_exists(...); if(false){...}

[Pierstoval]

I made a PR to fix that #5568 , not sure whether "this is the way" ™️ but at least it works for me

[aharabara]

Taking into consideration changes in version 3.1.9 there is a high chance you will have to remove the if (false) statement.

[bogdan-dubyk]

@Pierstoval I tried to make your changes locally but now I have another issue

  Warning: Cannot declare class ApiPlatform\Symfony\Bundle\Command\OpenApiCommand, because the name is already in use  

while I running any other CLI command