Reset Cart issue for Variable Product

Hello,
Here’s an issue that I find.
If I choosed the Reset cart to Yes, then when I Buy Now a variable product,
It can’t be added to the cart, this will resulted to an empty cart which is wrong.

I want to Remove other product from cart when product is added to cart by Buy now button.
It is working on the simple product but to Variable product it is not working, it will just emptied the cart.

Thank you and hoping you can help me with this.

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