Cannot create nav menu with name that matches existing term slug
|Reported by:||ryan||Owned by:|
"A term with the slug provided already exists." greets you if you try to create a menu that happens to match the slug of an existing term in any taxonomy.  removed the taxonomy arg passed to is_term() so 'term_slug_exists' is thrown even though the term doesn't exist for the nav_menu taxonomy. We might need to remove passing the slug to wp_insert_term() from wp_create_nav_menu().