order.success.additional.info container rendered twice on checkout success page

[roma84]

Steps to reproduce

1. Install Magento from develop branch.
2. Enable and configure Paypal Express and billing agreements.
3. Sign in.
4. Add Product to cart.
5. Go to checkout.
6. Select Paypal.
7. Check Billing Agreement checkbox.
8. You will be redirected to success page after payment completed.

Expected result

1. Billing agreement number rendered in page content

Actual result

1. Billing agreement number rendered twice: in page content and page bottom.
2. Screenshot:
   

Possible solution

in app/code/Magento/Checkout/view/frontend/layout/checkout_onepage_success.xml move order.success.additional.info inside checkout.success block:

<referenceContainer name="content">
    <block class="Magento\Checkout\Block\Onepage\Success" name="checkout.success" template="success.phtml" cacheable="false">
        <container name="order.success.additional.info" label="Order Success Additional Info"/>
    </block>
        ...
</referenceContainer>

[ishakhsuvarov]

@roma84 Thank you for reporting this issue. We have created an internal ticket MAGETWO-54380 to fix the problem.

[qbo-tech]

Confirmed issue on 2.1.3....

[magento-engcom-team]

@roma84, thank you for your report.
The issue is already fixed in 2.2.0