Unlisted/searchability=public posts hashtag search

app/javascript/mastodon/features/compose/containers/warning_container.jsx

@@ -11,7 +11,7 @@ import Warning from '../components/warning';
 
 const mapStateToProps = state => ({
   needsLockWarning: state.getIn(['compose', 'privacy']) === 'private' && !state.getIn(['accounts', me, 'locked']),
-  hashtagWarning: ['public', 'public_unlisted', 'login'].indexOf(state.getIn(['compose', 'privacy'])) < 0 && HASHTAG_PATTERN_REGEX.test(state.getIn(['compose', 'text'])),
+  hashtagWarning: ['public', 'public_unlisted', 'login'].indexOf(state.getIn(['compose', 'privacy'])) < 0 && state.getIn(['compose', 'searchability']) !== 'public' && HASHTAG_PATTERN_REGEX.test(state.getIn(['compose', 'text'])),
   directMessageWarning: state.getIn(['compose', 'privacy']) === 'direct',
   searchabilityWarning: state.getIn(['compose', 'searchability']) === 'limited',
 });

app/models/public_feed.rb

@@ -70,6 +70,10 @@ class PublicFeed
     Status.with_public_visibility.joins(:account).merge(Account.without_suspended.without_silenced)
   end
 
+  def public_search_scope
+    Status.with_public_search_visibility.joins(:account).merge(Account.without_suspended.without_silenced)
+  end
+
   def local_only_scope
     Status.local
   end

app/models/status.rb

@@ -103,6 +103,7 @@ class Status < ApplicationRecord
   scope :without_replies, -> { where('statuses.reply = FALSE OR statuses.in_reply_to_account_id = statuses.account_id') }
   scope :without_reblogs, -> { where(statuses: { reblog_of_id: nil }) }
   scope :with_public_visibility, -> { where(visibility: [:public, :public_unlisted, :login]) }
+  scope :with_public_search_visibility, -> { merge(where(visibility: [:public, :public_unlisted, :login]).or(Status.where(searchability: :public))) }
   scope :with_global_timeline_visibility, -> { where(visibility: [:public, :login]) }
   scope :tagged_with, ->(tag_ids) { joins(:statuses_tags).where(statuses_tags: { tag_id: tag_ids }) }
   scope :excluding_silenced_accounts, -> { left_outer_joins(:account).where(accounts: { silenced_at: nil }) }

app/models/tag_feed.rb

@@ -23,7 +23,7 @@ class TagFeed < PublicFeed
   # @param [Integer] min_id
   # @return [Array<Status>]
   def get(limit, max_id = nil, since_id = nil, min_id = nil)
-    scope = public_scope
+    scope = public_search_scope
 
     scope.merge!(tagged_with_any_scope)
     scope.merge!(tagged_with_all_scope)

app/services/fan_out_on_write_service.rb

@@ -23,6 +23,8 @@ class FanOutOnWriteService < BaseService
     elsif broadcastable_unlisted?
       fan_out_to_public_recipients!
       fan_out_to_public_unlisted_streams!
+    elsif broadcastable_unlisted2?
+      fan_out_to_unlisted_streams!
     end
   end
 
@@ -73,6 +75,10 @@ class FanOutOnWriteService < BaseService
     broadcast_to_public_unlisted_streams!
   end
 
+  def fan_out_to_unlisted_streams!
+    broadcast_to_hashtag_streams!
+  end
+
   def deliver_to_self!
     FeedManager.instance.push_to_home(@account, @status, update: update?) if @account.local?
   end
@@ -242,6 +248,10 @@ class FanOutOnWriteService < BaseService
     @status.public_unlisted_visibility? && !@status.reblog? && !@account.silenced?
   end
 
+  def broadcastable_unlisted2?
+    @status.unlisted_visibility? && @status.public_searchability? && !@status.reblog? && !@account.silenced?
+  end
+
   class AntennaCollection
     def initialize(status, update, stl_home = false) # rubocop:disable Style/OptionalBooleanParameter
       @status = status