id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
14079	wp_unique_post_slug does not work properly for hierarchical custom posts types	chowmein		"Custom post types with hierarchy set to true, will still have a suffix appended to the slug if the post name is not unique.

Currently you will have to apply the 'hierarchical_post_types' filter to your custom post type. However, this should be done through register_post_type(). "	defect (bug)	closed	normal	3.0.1	Post Types		normal	fixed