Missing addref for __unset

[iluuu1994]

Description

The following code:

<?php

class C {
    public function __unset($name) {
        global $c;
        $c = null;
        var_dump($this);
    }
}

$c = new C;
unset($c->prop);

Resulted in this output:

Segfault

But I expected this output instead:

Originally reported by @cnwangjihe.

PHP Version

PHP 8.2+

Operating System

No response