id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
19726	Don't update the post_thumbnail_cache if the thumbnail is already cached	prettyboymp		There is no reason to run the query in update_post_thumbnail_cache() if all of the thumbnail posts are already cached.  Before adding a post_id to the thumb_ids array, cache should be checked.	enhancement	closed	normal	3.4	Performance	3.3	normal	fixed	has-patch needs-testing