This code echos "create the wrong one" instead of "create the good one" :

 
<?php
class Af1 implements \Zend\ServiceManager\AbstractFactoryInterface
{
    public function canCreateServiceWithName(\Zend\ServiceManager\ServiceLocatorInterface $serviceLocator, $name, $requestedName)
    {
        return true;
    }

    public function createServiceWithName(\Zend\ServiceManager\ServiceLocatorInterface $serviceLocator, $name, $requestedName)
    {
        echo "create the good one";
        return new stdClass();
    }
}

class Af2 implements \Zend\ServiceManager\AbstractFactoryInterface
{
    public function canCreateServiceWithName(\Zend\ServiceManager\ServiceLocatorInterface $serviceLocator, $name, $requestedName)
    {
        return false;
    }

    public function createServiceWithName(\Zend\ServiceManager\ServiceLocatorInterface $serviceLocator, $name, $requestedName)
    {
        echo "create the wrong one";
        return new stdClass();
    }
}

$sm = new \Zend\ServiceManager\ServiceManager();
$sm->addAbstractFactory('Af1');
$sm->addAbstractFactory('Af2');

$sm->get('test');
?>

If I switch both "addAbstractFactory", it work fine.