id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
16742	Meta query doesn't work with $wp_query->set()	scribu		"The following doesn't work, apparently:

{{{
add_action( 'pre_get_posts', function( $query ) {
  $query->set('meta_key','oqp_guest_email');
  $query->set('meta_value',$dummy_email);
} );
}}}

Source: http://wordpress.org/support/topic/pre_get_posts-problem"	defect (bug)	closed	normal	3.1.1	Query	3.1	normal	fixed	has-patch dev-feedback needs-codex