Loading root view with no url opens an empty buffer

spec/atom/root-view-spec.coffee

@@ -31,6 +31,7 @@ describe "RootView", ->
     describe "when not called with a url", ->
       it "opens an empty buffer", ->
         rootView = new RootView
+        expect(rootView.editors.length).toBe 1
         expect(rootView.activeEditor().buffer.url).toBeUndefined()
 
   describe "focus", ->

src/atom/root-view.coffee

@@ -48,6 +48,8 @@ class RootView extends View
     if path
       @project = new Project(fs.directory(path))
       @open(path) if fs.isFile(path)
+    else
+      @activeEditor().setBuffer(new Buffer())
 
   open: (path) ->
     @activeEditor().setBuffer(@project.open(path))