Sometimes the v= parameter is added to the product URL I have a new Drupal 8 site running commerce. When I view a product, most of the time the clean URL is perfect. Other times, it has a version parameter attached to it. I can access the page and no parameter, then refresh and I get a ?v=2 or something like that. I'm baffled. Has anyone experienced this issue? We're afraid that if users copy this link (with parameter) to other sites, it will cause us duplicate issues with SEO.

I'm not sure what I need to post here for help, so if anyone can help, let me know and I'll provide anything I can.
This is because you've got more than 1 variation on a product. The v  parameter allows you (and drupal commerce) to directly link to the product page with the correct variant set as the selected one

For example you have "t shirts" product with variations for colour. You might want to link directly from the product listing page/cart/anywhere else to a specific colour tie.