bbPress.org

On the Topics archive page, the pagination links are broken, going to a forum. This appears to be due to maybe_map_permalink_to_group(). My solution is to add a filter after BBP_Forums_Group_Extension->topic_pagination() to correct the base parameter:

/* Fix BBPress pagination */
function my_topic_pagination_fix( $r ) {
	if ( is_post_type_archive( 'topic' ) ) {
		$r['base'] = bbp_get_topics_pagination_base();
	}
	return $r;
}
add_filter( 'bbp_topic_pagination', 'my_topic_pagination_fix', 11 );