pt.find('tag').each do |tag|
raise OSM::APIBadXMLError.new("way", pt, "tag is missing key") if tag['k'].nil?
raise OSM::APIBadXMLError.new("way", pt, "tag is missing value") if tag['v'].nil?
pt.find('tag').each do |tag|
raise OSM::APIBadXMLError.new("way", pt, "tag is missing key") if tag['k'].nil?
raise OSM::APIBadXMLError.new("way", pt, "tag is missing value") if tag['v'].nil?