id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
10018	Avoid broken relations after concatenating ways	rayquaza	team	"I found an easy way to break some route-relations:

* Create four ways, which describe a closed ring. Name them ""A"", ""B"", ""C"" and ""D""
* Create a route relation which contains those ways in the following order: A, B, C, D, A, B, C, D (so every way is used twice)
* Concatenate the ways B and C

The relation will now contain the ways A, BC, D, A, D.
The expected result would be A, BC, D, A, BC, D."	defect	closed	normal	15.10	Core		fixed