Kickstart 2. I'm importing products using Feeds Importer. Every time I delete a product and re-import I get a sequential number appended to the end of the product's URL. For instance, I import MyProduct and its URL is mysite.com/products/MyProduct. I delete that product and import again and now the URL is mysite.com/products/MyProduct-0. Next time -1, etc.
I tested removing all products, truncating the commerce_product and commerce_product_revision tables and that didn't help.
So, how do I keep the URLs from changing? I'd prefer to fix the actual problem, not just use PathAuto or some other process afterwards to change the URLs.