Working on some RSVP code stuff

lib/activityutils.php

@@ -350,7 +350,7 @@ class ActivityUtils
 
     static function compareTypes($type, $objects)
     {
-        $type = self::resolveUri($type);
+        $type = self::resolveUri($type, false);
         foreach ((array)$objects as $object) {
             if ($type === self::resolveUri($object)) {
                 return true;
@@ -367,6 +367,7 @@ class ActivityUtils
     static function resolveUri($uri, $make_relative=false)
     {
         if (empty($uri)) {
+            common_debug(_ve(debug_backtrace()));
             throw new ServerException('No URI to resolve in ActivityUtils::resolveUri');
         }