Preconditions:

• Added product with 100% completeness (including all defined prices and product availability)

Steps to reproduce:

1. Log in to storefront.
2. Go to /product-catalog
3. Verify product status and price for specific currency 
4. Log in to back office.
5. Go to Product catalog / Products / {product}
6. Click on 'Edit' button.
7. Change 'code' field value to different one.
8. Save the product.
9. Switch to tab 'Prices' and 'Availability' and verify it's values.

Actual result:

See attached screenshots.

Updating Code field cause removing all defined product prices and product availability.

Expected result:

Product prices and product availability aren't removed.