Refresh I18n customizations on change

app/models/translation_override.rb

@@ -6,6 +6,8 @@ class TranslationOverride < ActiveRecord::Base
     params = { locale: locale, translation_key: key }
     row_count = where(params).update_all(value: value)
     create!(params.merge(value: value)) if row_count == 0
+
+    MessageBus.publish('/i18n-flush', { refresh: true })
   end
 
 end

config/initializers/i18n.rb

@@ -3,3 +3,5 @@
 require 'i18n/backend/discourse_i18n'
 I18n.backend = I18n::Backend::DiscourseI18n.new
 I18n.config.missing_interpolation_argument_handler = proc { throw(:exception) }
+
+MessageBus.subscribe("/i18n-flush") { I18n.reload! }