I have a small issue with custom post types:
I have created a custom post types, called products.
Everything is works fine, except that sometimes, when searching for some product in the admin section, i get an error page that says "invalid post type".
The URL of this page is smth like this
I have found out that if i replace "post_type=Array&..." with "post_type=product&..." in the url it works just fine. Any of you have and idea on how to avoid this?