add typeset operation in mathjax queue on response list render

common/static/common/js/discussion/views/discussion_thread_view.js

@@ -317,6 +317,7 @@
                 if (options.focusAddedResponse) {
                     this.focusToTheAddedResponse(view.el);
                 }
+                DiscussionUtil.typesetMathJax(view.$el.find('.js-response-list'));
             };
 
             DiscussionThreadView.prototype.renderAddResponseButton = function() {

common/static/common/js/discussion/views/thread_response_view.js

@@ -177,6 +177,7 @@
                 });
                 this.commentViews.push(view);
                 this.focusToTheCommentResponse(view.$el.closest('.forum-response'));
+                DiscussionUtil.typesetMathJax(view.$el.find('.response-body'));
                 return view;
             };