Duplicated product also duplicates linked variations

Hi,
First, thank you for a great plugin. I have been searching for something like this for years!
I can se another user also has posted on this, but there was never found a solution. When duplicating a product, the linked variations also gets duplicated. Not it the settings, but they show up on the product page.

There is no way to remove these, besides creating a new linked variation, but not all of our products need a linked variation, so this creates some issues.

I hope you can help.