Prevent exceptions when adding repositories via conduit.

Summary: Simple change to stop exceptions from being thrown based on the diff in D4146.

Test Plan: arc call-conduit repository.create

Reviewers: epriestley, btrahan

Reviewed By: btrahan

CC: vrana, aran, Korvin

Maniphest Tasks: T2268

Differential Revision: https://secure.phabricator.com/D4342

src/applications/repository/conduit/ConduitAPI_repository_create_Method.php

@@ -123,7 +123,7 @@ final class ConduitAPI_repository_create_Method
       throw new ConduitException('ERR-DUPLICATE');
     }
 
-    return $this->buildDictForRepository($repository);
+    return $repository->toDictionary();
   }