[VS2013 Update4] HTML Client loading child and grandchild entities in separate OData requests even when not needed?

Question

Repro steps:
create new LightSwitch HTML C# app
Attach to Northwind OData service - http://services.odata.org/V3/Northwind/Northwind.svc/
include Order_Details, Orders, and Customers
add screen -> browse data, choose Order_Details
in the tile list that comes up, add other screen data, Order.Customer.ContactName
delete the 3 columns it added by default (deleting them isn't necessary to cause the issue, just makes the issue more obvious)
F5 and F12 in the resulting browser and make sure to check the Network tab
The resulting tile list shows just the contact names of the customers for the orders, as you'd expect, but they fill in slowly instead of all at once.
In the Network tab, you'll notice the first data request is what's expected in terms of including the associated child and grandchild entities
http://localhost:54553/NorthwindEntitiesData.svc/Order_Details?$expand=Order/Customer,Order&$top=45
Now, I'm a little confused at this point why it's not using $select to only fetch the particular properties needed, instead of it including all the Order and Customer properties as well, but that's secondary to this particular issue.
If you check the response, you'll see that the JSON returned definitely includes (as you'd expect) the Order and Customer, and the Order.Customer.ContactName in particular is definitely included - here's the first few lines of the response (reformatted to
be readable)
"odata.metadata": "http://localhost:54553/NorthwindEntitiesData.svc/$metadata#Order_Details",
"value": [{
"Order": {
"Customer": {
"CustomerID": "VINET",
"CompanyName": "Vins et alcools Chevalier",
"ContactName": "Paul Henriot",
After that is a bunch of further requests for Customers and Orders based on id, even though the first request already included all the data we need to display them.
http://localhost:54553/NorthwindEntitiesData.svc/Customers?$filter=CustomerID%20eq%20%27VINET%27
http://localhost:54553/NorthwindEntitiesData.svc/Customers?$filter=CustomerID%20eq%20%27TOMSP%27
http://localhost:54553/NorthwindEntitiesData.svc/Customers?$filter=CustomerID%20eq%20%27HUNGO%27
...etc...
As you'd imagine, these requests have a pretty big negative effect on performance, especially if you have multiple columns exhibiting this effect.
Is this By Design?  Am I doing something wrong?  Is there a workaround for this?
Thanks!

Answer 1

After that is a bunch of further requests for Customers and Orders based on id, even though the first request already included all the data we need to display them.
http://localhost:54553/NorthwindEntitiesData.svc/Customers?$filter=CustomerID%20eq%20%27VINET%27
http://localhost:54553/NorthwindEntitiesData.svc/Customers?$filter=CustomerID%20eq%20%27TOMSP%27
http://localhost:54553/NorthwindEntitiesData.svc/Customers?$filter=CustomerID%20eq%20%27HUNGO%27
...etc...
This really has bad impact on lightswitch performance, you can submit it to Visual Studio Connect Site, https://connect.microsoft.com/VisualStudio