id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
4959	Validator doesn't correctly diagnose/fix way with multiply-listed nodes	AM909	team	"1. Go to the area http://www.openstreetmap.org/?lat=33.596117&lon=-117.789975&zoom=19 with Ctrl-G and download it.

2. Run the validator.

It will complain that the Newport Beach closed way is a ""Self-intersecting way"", but not correctly explain what the actual problem is. If you right-click and choose ""Zoom to problem"", you get a section of the way with 7 nodes. If you move them around, it seems that the way never crosses itself.

Looking at the underlying data, the problem is actually that 3 of the nodes are listed twice in the list of nodes. I'm assuming that it is normal for a closed way to have the first and last node the same (id 374701236), but the other two are apparently the problem (374624132 and 374707009). Because they immediately follow each other twice, moving them doesn't show the problem.

The validator should explain that this is the actual problem (the presence of the nodes more than once in the nodelist), and provide a means of fixing it."	defect	closed	minor	14.01	Core validator	tested	fixed	validator intersecting duplicate nodelist	AM909