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

Conflicts:
- `app/services/process_mentions_service.rb`:
  glitch-soc local-only handling, ported upstream changes

app/javascript/mastodon/reducers/user_lists.js

@@ -53,14 +53,20 @@ import {
 } from 'mastodon/actions/directory';
 import { Map as ImmutableMap, List as ImmutableList } from 'immutable';
 
+const initialListState = ImmutableMap({
+  next: null,
+  isLoading: false,
+  items: ImmutableList(),
+});
+
 const initialState = ImmutableMap({
-  followers: ImmutableMap(),
-  following: ImmutableMap(),
-  reblogged_by: ImmutableMap(),
-  favourited_by: ImmutableMap(),
-  follow_requests: ImmutableMap(),
-  blocks: ImmutableMap(),
-  mutes: ImmutableMap(),
+  followers: initialListState,
+  following: initialListState,
+  reblogged_by: initialListState,
+  favourited_by: initialListState,
+  follow_requests: initialListState,
+  blocks: initialListState,
+  mutes: initialListState,
 });
 
 const normalizeList = (state, path, accounts, next) => {

app/services/activitypub/process_account_service.rb

@@ -196,7 +196,7 @@ class ActivityPub::ProcessAccountService < BaseService
     total_items = collection.is_a?(Hash) && collection['totalItems'].present? && collection['totalItems'].is_a?(Numeric) ? collection['totalItems'] : nil
     has_first_page = collection.is_a?(Hash) && collection['first'].present?
     @collections[type] = [total_items, has_first_page]
-  rescue HTTP::Error, OpenSSL::SSL::SSLError
+  rescue HTTP::Error, OpenSSL::SSL::SSLError, Mastodon::LengthValidationError
     @collections[type] = [nil, nil]
   end
 

app/services/process_mentions_service.rb

@@ -60,7 +60,7 @@ class ProcessMentionsService < BaseService
     if mentioned_account.local?
       LocalNotificationWorker.perform_async(mentioned_account.id, mention.id, mention.class.name, :mention)
     elsif mentioned_account.activitypub? && !@status.local_only?
-      ActivityPub::DeliveryWorker.perform_async(activitypub_json, mention.status.account_id, mentioned_account.inbox_url)
+      ActivityPub::DeliveryWorker.perform_async(activitypub_json, mention.status.account_id, mentioned_account.inbox_url, { synchronize_followers: !mention.status.distributable? })
     end
   end