Hi, I have a problem. In the back-end product page, if I try to search something the 0 value of the option "without category" of the category select activate, even if I don't select it (and leave the first option selected) and so the search never shows correct results.
I saw that the get parameter product_cat in the page of the results is in both cases (first and last option selected of that select) valued as 0. WHY? It shouldn't be empty, if I select the first empty value?