id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
10226	Verify multiple equal values	naoliv	team	"Could JOSM verify for multiple equal values?
For example, `ref` allows multiple values but if we have `ref=A1;A1` we do not see any warning.

Since `ref` allows multiple values, it should warn only when we have two or more equal values in the set.

Could also be expanded for other keys that allow multiple values."	enhancement	new	normal		Core validator			mapcss multiple values repetition	bastiK simon04