Merge branch 'master' into glitch-soc/merge-upstream

Conflicts:
- app/models/user.rb
- app/serializers/initial_state_serializer.rb
- app/views/admin/dashboard/index.html.haml
- config/locales/simple_form.en.yml

app/services/fan_out_on_write_service.rb

@@ -77,8 +77,8 @@ class FanOutOnWriteService < BaseService
     Rails.logger.debug "Delivering status #{status.id} to hashtags"
 
     status.tags.pluck(:name).each do |hashtag|
-      Redis.current.publish("timeline:hashtag:#{hashtag}", @payload)
-      Redis.current.publish("timeline:hashtag:#{hashtag}:local", @payload) if status.local?
+      Redis.current.publish("timeline:hashtag:#{hashtag.mb_chars.downcase}", @payload)
+      Redis.current.publish("timeline:hashtag:#{hashtag.mb_chars.downcase}:local", @payload) if status.local?
     end
   end