Use a redirect when a building alias is used in a request.

src/UNL/TourMap/Marker/Building.php

@@ -20,6 +20,12 @@ class UNL_TourMap_Marker_Building extends UNL_TourMap_Marker
             }
             
             $data = current($data);
+            
+            // redirect if the loaded building data is from an alias
+            if ($options['code'] !== $data['code']) {
+                header('Location: ' . str_replace('/' . $options['code'], '/' . $data['code'], $_SERVER['REQUEST_URI']));
+                exit;
+            }
         } else {
             $data = $options;
         }