FIX: polls requires a refresh to work when inserted in the stream

plugins/poll/assets/javascripts/initializers/extend-for-poll.js.es6

@@ -21,6 +21,15 @@ export default {
 
   initialize(container) {
 
+    const messageBus = container.lookup("message-bus:main");
+
+    // listen for back-end to tell us when a post has a poll
+    messageBus.subscribe("/polls", data => {
+      const post = container.lookup("controller:topic").get("postStream").findLoadedPost(data.post_id);
+      // HACK to trigger the "postViewUpdated" event
+      post.set("cooked", post.get("cooked") + " ");
+    });
+
     // overwrite polls
     PostView.reopen({
       _createPollViews: function($post) {

plugins/poll/plugin.rb

@@ -273,6 +273,12 @@ after_initialize do
     whitelisted
   end
 
+  # tells the front-end we have a poll for that post
+  on(:post_created) do |post|
+    next if post.is_first_post? || post.custom_fields[POLLS_CUSTOM_FIELD].blank?
+    DiscourseBus.publish("/polls", { post_id: post.id })
+  end
+
   add_to_serializer(:post, :polls, false) { post_custom_fields[POLLS_CUSTOM_FIELD] }
   add_to_serializer(:post, :include_polls?) { post_custom_fields.present? && post_custom_fields[POLLS_CUSTOM_FIELD].present? }