Bug Report

Minimal PHP Code Causing Issue

See https://getrector.com/demo/c655ef2d-fc8b-413b-b22d-eb903cd113a7

<?php

trait SomeTrait
{
    public function run(bool $param): bool
    {
        return (bool) ($this->config['allow_404'] ?? false);
    }
}

On trait, the valid cast is removed on union falsy mixed.

Responsible rules

• RecastingRemovalRector

Expected Behavior

should be skipped.