Ensure that boundary relation members look like boundaries

js/id/svg.js

@@ -83,11 +83,12 @@ iD.svg = {
         };
     },
 
-    MultipolygonMemberTags: function(graph) {
+    RelationMemberTags: function(graph) {
         return function(entity) {
             var tags = entity.tags;
             graph.parentRelations(entity).forEach(function(relation) {
-                if (relation.isMultipolygon()) {
+                var type = relation.tags.type;
+                if (type === 'multipolygon' || type === 'boundary') {
                     tags = _.extend({}, relation.tags, tags);
                 }
             });

js/id/svg/lines.js

@@ -86,7 +86,7 @@ iD.svg.Lines = function(projection) {
         lines
             .sort(waystack)
             .attr('d', getPath)
-            .call(iD.svg.TagClasses().tags(iD.svg.MultipolygonMemberTags(graph)));
+            .call(iD.svg.TagClasses().tags(iD.svg.RelationMemberTags(graph)));
 
         lines.exit()
             .remove();