id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc
18513,Searching with explicit post types unsets page post type,GaryJ,,"Tested on WP 3.2.1, Twenty Eleven with no plugins, multisite.

If I explicitly limit a search query via a GET request using an array of post_type values, the post_type for page is automatically excluded.

To reproduce:
 * Do a search on a WP install (perhaps through a modified search form), such that the URL is like:
  http://example.com/?post_type[]=post&post_type[]=page&post_type[]=attachment&s=Test
or
  http://example.com/?post_type[]=post&post_type[]=page&post_type[]=book&s=Test

That's searching for ""Test"" on post, page and attachment/book post types.

 * Adding the following to a theme's functions.php:
{{{
add_filter( 'pre_get_posts', 'wpcpt_search' );
/**
 *
 * @param array $query
 */
function wpcpt_search( $query ) {

	if ( ! $query->is_search )
		return $query;

	print_r( $query->query_vars );

	return $query;

}
}}}

That spits out (and seemingly confirmed via the values shown in the Debug Bar plugin) the following at the beginning:
{{{
  Array ( [s] => Test [post_type] => Array ( [0] => post [2] => attachment ) 
}}}
and only returns results for posts and attachments (or books). The fact that key 1 is missing makes me think that page was in the array at some point, but it's been unset, but I can't see where, or why, this might be done.

(When no post_type is set, giving a post_type of 'any', which in turn gives all of the non-excluded_from_search post types, then page is one of the array values, and the search results correctly include pages.)
",defect (bug),new,normal,Awaiting Review,Query,3.2.1,normal,,has-patch,scott@…