Not possible to extend `ArrayObject` - conflict of ArrayObject/ArrayAccess?

[mbolli]

Example: https://psalm.dev/r/a03704b816

And the real code:

/**
 * Class ControllerDescriptionArray.
 *
 * @extends \ArrayObject<int, ControllerDescription|null>
 */
class ControllerDescriptionArray extends \ArrayObject {
    public function offsetSet(mixed $key, mixed $value): void {
        if ($value instanceof ControllerDescription === false) {
            throw new \InvalidArgumentException('Value must be a ControllerDescription');
        }
        parent::offsetSet($key, $value);
    }
}

output (psalm 5.18.0):

ERROR: ParamNameMismatch
at /var/www/framework/src/controller/description/ControllerDescriptionArray.php:13:37
Argument 1 of mbolli\framework\controller\description\ControllerDescriptionArray::offsetSet has wrong name $key, expecting $offset as defined by ArrayAccess::offsetSet (see https://psalm.dev/230)
    public function offsetSet(mixed $key, mixed $value): void {


ERROR: ParamNameMismatch
at /var/www/framework/src/controller/description/ControllerDescriptionArray.php:13:37
Argument 1 of mbolli\framework\controller\description\ControllerDescriptionArray::offsetSet has wrong name $key, expecting $offset as defined by ArrayObject::offsetSet (see https://psalm.dev/230)
    public function offsetSet(mixed $key, mixed $value): void {

Note: According to https://www.php.net/manual/en/arrayobject.offsetset.php, the ArrayObject::offsetSet() method signature is:

public ArrayObject::offsetSet(mixed $key, mixed $value): void

According to https://www.php.net/manual/en/arrayaccess.offsetset.php, the ArrayAccess::offsetSet() method signature is:

public ArrayAccess::offsetSet(mixed $offset, mixed $value): void