PHP function to fix Wordpress error "Undefined property: stdClass::$labels in general-template.php (for this Trac ticket: http://core.trac.wordpress.org/ticket/20994). I needed it to fix the title send in an RSS feed for my custom taxonomy, but helps with quite a few edge cases. Just paste into functions.php

fix_title.php

<?php
add_action('pre_get_posts', 'fix_title');
	function fix_title(){
		global $wp_query;
		if ( $wp_query->is_post_type_archive && $wp_query->is_tax ) {
			global $queried_object;
			$queried_object = get_queried_object();
			$queried_object->labels = new stdClass();
			$queried_object->labels->name = $queried_object->name;
			return $queried_object;
		}
	}
?>