The plugin breaks type check of valid extended dbal connection class

[zerkms]

<?php
declare(strict_types=1);

namespace Repro;

class Conn extends \Doctrine\DBAL\Connection
{
}

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ERROR: MethodSignatureMismatch - src/Conn.php:6:7 - Argument 1 of Doctrine\DBAL\Connection::prepare has wrong type 'string', expecting '' as defined by Doctrine\DBAL\Driver\Connection::prepare (see https://psalm.dev/042)
class Conn extends \Doctrine\DBAL\Connection


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1 errors found
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No files analyzed
Psalm was unable to infer types in the codebase

Repro: https://github.com/zerkms/psalm-plugin-doctrine-issue-91

I cannot see anything particularly suspicious in the stub, so it also could be a psalm bug.

[snapshotpl]

Same error in my project. Same case - extends \Doctrine\DBAL\Connection