id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	blocking	blockedby
4158	multiple pseudo selector issues	initjh		":not(:nth-child(1))

See http://dev.jquery.com/ticket/4169 for:
:has(:nth-child(1))
"	bug	closed	major	1.3.2	selector	1.3.1	fixed