Assigment to private property of current class given child class is broken

[danog]

https://psalm.dev/r/afe6df2159

[psalm-github-bot]

I found these snippets:

https://psalm.dev/r/afe6df2159

<?php

class a {
    private int $value = 0;
    public function handle(a $v): void {
        if ($v instanceof b) {
            $v->value = 123;
        } else {
            $v->value = 321;
        }
    }
}

class b extends a {}

Psalm output (using commit f315647):

ERROR: UndefinedPropertyAssignment - 7:13 - Instance property b::$value is not defined

[orklah]

Ugh, I hate this thing so much I made a plugin to forbid this: https://github.com/orklah/psalm-strict-visibility

But I guess it's a valid issue still