failure by grouping quantities in cart of the same product

[cesar_esparkle]

I have an installation with version 2.0.16 of virtuemart and when buying products not grouped quantities of the same product in the cart. Always be adding new and never grouped.

Is there a parameter that prevents the grouping?
I can? Figure out where exactly the code is controlled by if I have something wrong?

Thank you very much.

Regards, Cesar.

[Maxim Pishnyak]

Use latest VM.

[cesar_esparkle]

Ok thanks, it's a bug that was in previous versions?
I say this because not going to be easy to update as fast to check the problem and I've played some of the core things and want to make sure to update the version solves the problem.

Thank you very much.

[jenkinhill]

There are critical security issues with all versions before 2.0.22c, so failing to update really is not an option.

[cesar_esparkle]

Ok, I agree that I have to update it, I did and still the same problem. I should know, that is what I said from the beginning is that in terms of programming, what is the function or line of code which influences so that when adding a product to cart, to group and add the amount if it already exists in the car and you add a new item to the car if it does not exist.

Let's see if I can help, since I always add one.
Thank you very much.