id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
17995	[PATCH] Add sort method for mapcss	taylor.smock	Don-vip	"It would be good to have a sort implementation in order to stably compare lists.

For example,
{{{
#!mapcss
way[ref][join("";"", sort(parent_tags(""ref""))) != join("";"", sort(split("";"", tag(""ref""))))] {
  throwError: tr(""Possible mismatched refs"");
}
}}}

In this case, the first sort on the `parent_tags` isn't wholly necessary (documentation indicates that it is sorted), but in the second sort (for the `ref` on the way), it is necessary, since OSM contributors may add refs like `ref=A9;A8;B42`."	enhancement	closed	normal	19.08	Core		fixed	mapcss sort