Apparently, Oxid generates a bunch of SEO URLs for every product (every possible category path plus some others) and you can manually override the URLs if you want. So far, so good.
What we need, however, is that there is only ever exactly one SEO URL for every product, and that one is used no matter where you are on the shop: brands, manufacturers, categories.
So instead of:
http://shop.tld/category1/product1.html in category1 and
http://shop.tld/category2/product1.html in category2 and
we always want to have:
There must not be any other link to this article anywhere on the site. How can I configure oxid to do this?