title: Magento multistore catalog issue
body: <p>In Magento i have created a catalog with 10 root categories, each root category is the default category of a store. I've read that different stores have different catalogs depending on their root category, but it seems that every product is visible in every store. For example every flat table (generated for each store) contains every product in the catalog and every product is visible and accessible in every store. What's wrong with this configuration? Is there a way to fix this so that every store contains only its default category and its subcategories/products?</p>