hi All

Im use old 1.2.6 zen

Last time I see one problem
Im try to search cartridges for one printer on my shop

Im post printer name and see results - see cartridges 441, 442, 443 and 444
Im click to add 441 to my card. all ok.... click on continue shopping and see my search result... try to add another model and system just add another one 441...
Im see two 441 in my card and click continue shopping...
When Im click on 443 - Im see three 441 in my card...

same result with another cartridges - system always add one more first selected...

please help