Installed Base behavior with RMA Orders

Summary:

Installed Base behavior with RMA Orders  

Content (required):

I have shipped Sales Order 418. FG has the components for which Asset hierarchy has been created upon shipment in IB. The location shown like Customer Location.

Now I did a Return order 419 for the order 418. Order 418 Received into Inventory and ESS Send receipt confirmation has been completed successfully. Asset Interface step for Order 418 completed.

Question on the standard functionality for this scenario,

For which order will the Install Base create ? and What kind of details I can see to know RMA and Standard order ?

When I checked standard Order 419 , It has the IB record with Location Type as Customer Address and Customer Location. Sales Order details are missing for this. But the Asset Hierarchy still shows.