id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
12983	Walker.guard is called more than once for every node boundary	Piotrek Koszuliński		"Discovered when working on #12964.

See tests pushed in branch:t/12983.

It would be useful if we knew that guard will be called only once, because it makes some iterations easier (and guard is the only callback which is called for both element boundaries)."	New Feature	confirmed	Normal		General