setup.rb in rack-oauth2-server-2.6.0

- old
+ new

@@ -115,7 +115,8 @@
   def teardown
     Server::Client.collection.drop
     Server::AuthRequest.collection.drop
     Server::AccessGrant.collection.drop
     Server::AccessToken.collection.drop
+    Server::Issuer.collection.drop
   end
 end