Custom order item title is overwritten when adding to cart.

I'm attaching a new approach as recommended by @John Pitcairn

The errors in the tests do not appear to be related to our changes.

I updated the latest patch from facine because the database update collided with the address 2.0 database update added after #16 was created.

hm... Feels a bit overkill but probably the only way to preserve a custom order item title on refresh...
We need to update the order kernel test as well to test the new method.

Updated the order item kernel test and committed the patch. Thanks everyone!

Automatically closed - issue fixed for 2 weeks with no activity.