Hello
I dont think this is a good feature...
What about the social buttons on product? They dont read the canonical url ... so you split likes to more urls if the product is in more categories.
And the same with the social comments - the comments for one product splits to more urls, this is a big problem I think ...
For example, I have disqus comments on products, and if the product are in more categories, the comments splits to more url ....
also when I add categories to menu items, it mess up the breadcrumbs ...
and also, the urls are somehow "slowed", I acces the product form category 1 - it shows url from category 1, then I acces product from category 2, it shows url for the category 1, then I acces it form category 3 and it shows the url from category 2
It would be much better if it works the old way ... to display the product on the category with the lowest id ... How can this be changed?