Product code is different in search page

-- url of the page with the problem -- : mosogatobolt.hu/hikashop-menu-for-produc...lanco-ajandek-szifon
-- HikaShop version -- : 2.3.3
-- Joomla version -- : 3.3.6

We copied a product and changed the product code.
In the search results (can't provide direct link, use the search field on the left) the new code appears: 902192
But if you open the product page, it shows a totally different product code: 901705_6414_copy1447663157
mosogatobolt.hu/hikashop-menu-for-produc...lanco-ajandek-szifon

Hi,

You change the product code for the main product but the product code display in the product page are the variant product codes.

Regards,