Prevent multiple rendering.

app/controllers/organizations_controller.rb

@@ -280,6 +280,7 @@ curl http://localhost/api/v1/organization/{id} -v -u #{login}:#{password} -H "Co
         assets: assets,
         organization_ids: organization_ids.uniq,
       }
+      return
     end
 
     list = []

app/controllers/users_controller.rb

@@ -390,6 +390,7 @@ class UsersController < ApplicationController
         assets: assets,
         user_ids: user_ids.uniq,
       }
+      return
     end
 
     list = []