Fix handling of edited status with new media and no text (#35970)

app/services/activitypub/process_status_update_service.rb

@@ -112,6 +112,8 @@ class ActivityPub::ProcessStatusUpdateService < BaseService
     @status.ordered_media_attachment_ids = @next_media_attachments.map(&:id)
 
     @media_attachments_changed = true if @status.ordered_media_attachment_ids != previous_media_attachments_ids
+
+    @status.media_attachments.reload if @media_attachments_changed
   end
 
   def download_media_files!