Fix accidental distribution of hidden stream entries to PuSH subscribers

app/workers/pubsubhubbub/distribution_worker.rb

@@ -7,6 +7,9 @@ class Pubsubhubbub::DistributionWorker
 
   def perform(stream_entry_id)
     stream_entry = StreamEntry.find(stream_entry_id)
+
+    return if stream_entry.hidden?
+
     account  = stream_entry.account
     renderer = AccountsController.renderer.new(method: 'get', http_host: Rails.configuration.x.local_domain, https: Rails.configuration.x.use_https)
     payload  = renderer.render(:show, assigns: { account: account, entries: [stream_entry] }, formats: [:atom])