JS issue in admin with nested embedded

[shavounet]

Test case

• lastest version of the CDM
• use this kind of model setup (embedded attribute with multi values containing another embedded attribute) :

        OrderFulfillment:
            attributes:
                items:
                    type: embed_multi_family
                    multiple: true
                    options:
                        allowed_families:
                            - OrderFulfillmentItem

        OrderFulfillmentItem:
            attributes:
                orderItem:
                    type: embed_multi_family
                    options:
                        allowed_families:
                            - OrderItem

Result

• the second data inside "items" takes the place of the first (database is ok)