X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/7ee10192ebea5bdbbd0b80b73cfbd6600855800f..bf31791f65fee149b660c1395d59204309f906fa:/app/controllers/relation_controller.rb

diff --git a/app/controllers/relation_controller.rb b/app/controllers/relation_controller.rb
index a249e42a0..440c69550 100644
--- a/app/controllers/relation_controller.rb
+++ b/app/controllers/relation_controller.rb
@@ -120,26 +120,27 @@ class RelationController < ApplicationController
         # create XML.
         doc = OSM::API.new.get_xml_doc
         visible_nodes = {}
+        changeset_cache = {}
         user_display_name_cache = {}
 
         nodes.each do |node|
           if node.visible? # should be unnecessary if data is consistent.
-            doc.root << node.to_xml_node(user_display_name_cache)
+            doc.root << node.to_xml_node(changeset_cache, user_display_name_cache)
             visible_nodes[node.id] = node
           end
         end
         ways.each do |way|
           if way.visible? # should be unnecessary if data is consistent.
-            doc.root << way.to_xml_node(visible_nodes, user_display_name_cache)
+            doc.root << way.to_xml_node(visible_nodes, changeset_cache, user_display_name_cache)
           end
         end
         relations.each do |rel|
           if rel.visible? # should be unnecessary if data is consistent.
-            doc.root << rel.to_xml_node(user_display_name_cache)
+            doc.root << rel.to_xml_node(changeset_cache, user_display_name_cache)
           end
         end
         # finally add self and output
-        doc.root << relation.to_xml_node(user_display_name_cache)
+        doc.root << relation.to_xml_node(changeset_cache, user_display_name_cache)
         render :text => doc.to_s, :content_type => "text/xml"
 
       else