UndefinedVariable with a preg_match() as part of an if statement

[morozov]

https://psalm.dev/r/996013af45

[psalm-github-bot]

I found these snippets:

https://psalm.dev/r/996013af45

<?php

function test(?string $comment): ?string
{
    if ($comment === null || preg_match('/.*/', $comment, $match) === 0) {
        return null;
    }

    return $match[0];
}

Psalm output (using commit aee4311):

ERROR: UndefinedVariable - 9:12 - Cannot find referenced variable $match

INFO: MixedArrayAccess - 9:12 - Cannot access array value on mixed variable $match

INFO: MixedReturnStatement - 9:12 - Could not infer a return type

INFO: MixedInferredReturnType - 3:34 - Could not verify return type 'null|string' for test