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

Conflicts:
- app/services/post_status_service.rb
  Small conflict due to handling of instance-local toots.
  A subsequent change is required to ensure instance-local polls are not leaked
  through Update.

app/serializers/activitypub/update_poll_serializer.rb

@@ -0,0 +1,27 @@
+# frozen_string_literal: true
+
+class ActivityPub::UpdatePollSerializer < ActiveModel::Serializer
+  attributes :id, :type, :actor, :to
+
+  has_one :object, serializer: ActivityPub::NoteSerializer
+
+  def id
+    [ActivityPub::TagManager.instance.uri_for(object), '#updates/', object.poll.updated_at.to_i].join
+  end
+
+  def type
+    'Update'
+  end
+
+  def actor
+    ActivityPub::TagManager.instance.uri_for(object)
+  end
+
+  def to
+    ActivityPub::TagManager.instance.to(object)
+  end
+
+  def cc
+    ActivityPub::TagManager.instance.cc(object)
+  end
+end

app/serializers/rest/notification_serializer.rb

@@ -11,6 +11,6 @@ class REST::NotificationSerializer < ActiveModel::Serializer
   end
 
   def status_type?
-    [:favourite, :reblog, :mention].include?(object.type)
+    [:favourite, :reblog, :mention, :poll].include?(object.type)
   end
 end