I am using Drupal Commerce for a portal & I am facing a issue which is re-producible on fresh instance as well.
Suppose if I have a account on a website and I am logged in. I add some items to my cart and leave. It will remain in my cart even if I login from another system.
But if I don't login from another system at start & click "Add to Cart", item get added to my cart with help of session. Now if I login into system, only current items are in cart, not which I have added from another system in my account.
I mean, we loose those items which were in cart before.
This behaviour I checked on some other ecommerce website as well, but they add session cart into the account cart once you login.
What can be the solution of this ?