id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
23217	Pingback url array isn't uniqued before pings are sent	dllh	SergeyBiryukov	If you specify the same url in a post more than once, it gets hit with a pingback once for each time it appears. We should only ever ping a link once for a given post.  This is easily resolved by performing an {{{array_unique()}}} before doing the pings. Patch attached.	defect (bug)	closed	normal	3.6	Pings/Trackbacks	1.2	normal	fixed	has-patch commit