Post with the discussion id containing dots uneditable

When user try to edit the post under dicussion whose
id contains dots it doesn't allow user to edit taht
post.

TNL-607

common/static/coffee/spec/discussion/view/discussion_thread_edit_view_spec.js

@@ -62,7 +62,7 @@
         testCancel = function(view) {
             view.$('.post-cancel').click();
             expect($('.edit-post-form')).not.toExist();
-        };
+        }
 
         it('can close the view in tab mode', function() {
             this.createEditView();
@@ -113,52 +113,5 @@
             });
         });
 
-        testUpdate = function(view, thread) {
-            spyOn($, 'ajax').andCallFake(function(params) {
-                expect(params.url.path()).toEqual(DiscussionUtil.urlFor('update_thread', 'dummy_id'));
-                expect(params.data.thread_type).toBe('discussion');
-                expect(params.data.commentable_id).toBe('other_topic');
-                expect(params.data.title).toBe('changed thread title');
-                params.success();
-                return {always: function() {}};
-            });
-            view.$el.find('a.topic-title')[1].click(); // set new topic
-            view.$('.edit-post-title').val('changed thread title'); // set new title
-            view.$("label[for$='post-type-discussion']").click(); // set new thread type
-            view.$('.post-update').click();
-            expect($.ajax).toHaveBeenCalled();
-
-            expect(thread.get('title')).toBe('changed thread title');
-            expect(thread.get('thread_type')).toBe('discussion');
-            expect(thread.get('commentable_id')).toBe('other_topic');
-            expect(thread.get('courseware_title')).toBe('Other Topic');
-            expect(view.$('.edit-post-title')).toHaveValue('');
-            expect(view.$('.wmd-preview p')).toHaveText('');
-        };
-
-        it('can save new data correctly in tab mode', function() {
-            this.createEditView();
-            testUpdate(this.view, this.thread);
-        });
-
-        it('can save new data correctly in inline mode', function() {
-            this.createEditView({"mode": "inline"});
-            testUpdate(this.view, this.thread);
-        });
-
-        testCancel = function(view) {
-            view.$('.post-cancel').click();
-            expect($('.edit-post-form')).not.toExist();
-        }
-
-        it('can close the view in tab mode', function() {
-            this.createEditView();
-            testCancel(this.view);
-        });
-
-        it('can close the view in inline mode', function() {
-            this.createEditView({"mode": "inline"});
-            testCancel(this.view);
-        });
     });
 }).call(this);

common/static/coffee/src/discussion/views/discussion_topic_menu_view.js

@@ -40,7 +40,7 @@
                 this.selectedTopic = this.$('.js-selected-topic');
                 this.hideTopicDropdown();
                 if (this.getCurrentTopicId()) {
-                    this.setTopic(this.$('a.topic-title').filter('[data-discussion-id=' + this.getCurrentTopicId() + ']'));
+                    this.setTopic(this.$('a.topic-title').filter('[data-discussion-id="' + this.getCurrentTopicId() + '"]'));
                 } else {
                     this.setTopic(this.$('a.topic-title').first());
                 }