id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
21645	Rewrite API logic and flush_rules	here		"
It is not clear if or how visiting the Settings -> Permalinks calls flush_rules.  It is referenced occasionally as an apparent alternative to $wp_rewrite->flush_rules() in Documentation.  This should be explicitly confirmed in the admin interface and/or a button based action.

Documentation for the Rewrite API functions do not point at $wp_rewrite->flush_rules() effectively.  (Updated some codex links, but seems worth including a pointer inline in function definitions.) 

I was confused while editing an existing theme why duplicating existing add_feed() structures in functions.php did not produce duplicated behaviour in the permalinks.  ?feed=atom1 worked , but /feed/atom1/ didn't, until calling flush_rules()

Logic seems broken between these functions.  Why call Rewrite API add_feed() every init, but still require a flush_rules reset to activate?  They should be more explicitly linked / combined / triggered.  See prior conversation in #21335

http://codex.wordpress.org/Rewrite_API"	defect (bug)	new	normal	Awaiting Review	Rewrite Rules	3.4.1	normal