Product data/images imported into incorrect product record

-- HikaShop version -- : 6.1.1
-- Joomla version -- : ‎5.4.1
-- PHP version -- : 8.2.14
-- Browser(s) name and version -- : Firefox 145.0.1
-- Error-message(debug-mod must be tuned on) -- : no error message

We are importing products on a scheduled basis from a CSV file. We noticed that some product data was being imported into an existing product that was not the same product as what was being imported, instead of creating a new product. We believe we've tracked it down to an issue with product codes being too similar and Hikashop potentially not taking into consideration the full product code.

For example, we have several products that have codes like:
Brookstone-1234
Brookstone-1432
Brookstone-1342

Regency-1234
Regency-1324
Regency-1432

What we're seeing is that in some cases, the product is missing but the product's images/data were imported into a different product of a similar name - eg. Brookstone-1432 doesn't exist but Brookstone-1234 contains images for Brookstone-1432.

We have many other products importing without any issue. It's only products that have these similar product codes that are being erroneously merged in some cases.

Here's a case where the product image was imported into a variant of a different product.