Ui form is broken by ui grid if it's added into the form

[ytorbyk]

Preconditions

1. Developer branch is used

Steps to reproduce

1. I try to add ui grid on customer edit page (which is ui form)
2. I created app/code/Jyt/TestModule/view/adminhtml/ui_component/customer_form.xml file with contend

<?xml version="1.0"?>
<form xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Ui:etc/ui_configuration.xsd">
    <fieldset name="customer_cms_pages">
        <argument name="data" xsi:type="array">
            <item name="config" xsi:type="array">
                <item name="label" xsi:type="string" translate="true">CMS Pages</item>
            </item>
        </argument>
        <insertListing>
            <argument name="data" xsi:type="array">
                <item name="config" xsi:type="array">
                    <item name="ns" xsi:type="string">cms_page_listing</item>
                    <item name="autoRender" xsi:type="boolean">true</item>
                </item>
            </argument>
        </insertListing>
    </fieldset>
</form>

3. cms_page_listing is used for example only.

Expected result

1. Grid is rendered properly
2. It's posible to save the customer edit form

Actual result

1. It's impossible to save the form, js error is thrown

2. Grid it rendered, but with ui bugs

Question: Is it possible to pass current customer (from the url or edit form) to grid collection somehow or backend session data should be used here?

[magento-engcom-team]

@ytorbyk, thank you for your report.
We've created internal ticket(s) MAGETWO-81439 to track progress on the issue.