Can't search specific category
My site will have 2 primary categories and I'd like to have separate search forms for each. I've tried modifying the search form to add a specific category by adding the following where "###" is the category ID I'm interested in.:
<input type="hidden" name="cat" value="###" />
However, this seems to have zero effect on the search results. It returns all the search matches regardless of which category it's in.
To prove my results I confirmed that both of these queries produces exactly the same results:
Has anyone else run into this?