FIX: don't stop youtube when liking a post

Also fixes post action create/destroy api not to include post raw.

app/assets/javascripts/discourse/models/_post.js

@@ -327,12 +327,24 @@ Discourse.Post = Discourse.Model.extend({
   updateFromJson: function(obj) {
     if (!obj) return;
 
+    var skip, oldVal;
+
     // Update all the properties
     var post = this;
     _.each(obj, function(val,key) {
       if (key !== 'actions_summary'){
-        if (val) {
-          post.set(key, val);
+        oldVal = post[key];
+        skip = false;
+
+        if (val && val !== oldVal) {
+
+          if (key === "reply_to_user" && val && oldVal) {
+            skip = val.username === oldVal.username || Em.get(val, "username") === Em.get(oldVal, "username");
+          }
+
+          if(!skip) {
+            post.set(key, val);
+          }
         }
       }
     });

app/controllers/application_controller.rb

@@ -355,9 +355,9 @@ class ApplicationController < ActionController::Base
 
   protected
 
-    def render_post_json(post)
+    def render_post_json(post, add_raw=true)
       post_serializer = PostSerializer.new(post, scope: guardian, root: false)
-      post_serializer.add_raw = true
+      post_serializer.add_raw = add_raw
       post_serializer.topic_slug = post.topic.slug if post.topic.present?
 
       counts = PostAction.counts_for([post], current_user)

app/controllers/post_actions_controller.rb

@@ -22,7 +22,7 @@ class PostActionsController < ApplicationController
     else
       # We need to reload or otherwise we are showing the old values on the front end
       @post.reload
-      render_post_json(@post)
+      render_post_json(@post, _add_raw = false)
     end
   end
 
@@ -43,7 +43,7 @@ class PostActionsController < ApplicationController
     PostAction.remove_act(current_user, @post, post_action.post_action_type_id)
 
     @post.reload
-    render_post_json(@post)
+    render_post_json(@post, _add_raw = false)
   end
 
   def defer_flags