Merge pull request #5052 from consul/tenant_not_found_exception

Do not track `Apartment::TenantNotFound` exceptions through `Airbrake`

config/initializers/errbit.rb

@@ -16,7 +16,7 @@ Airbrake.configure do |config|
 end
 
 Airbrake.add_filter do |notice|
-  ignorables = %w[ActiveRecord::RecordNotFound]
+  ignorables = %w[ActiveRecord::RecordNotFound Apartment::TenantNotFound]
   notice.ignore! if ignorables.include? notice[:errors].first[:type]
 end