RootView (instead of Window) handles opening an empty buffer if no path is given.

src/app/root-view.coffee

@@ -42,7 +42,11 @@ class RootView extends View
     @handleEvents()
     @setTitle()
     @loadUserConfiguration()
-    @open(pathToOpen) if fs.isFile(pathToOpen) unless suppressOpen
+
+    if pathToOpen
+      @open(pathToOpen) if fs.isFile(pathToOpen) and not suppressOpen
+    else
+      @open()
 
   serialize: ->
     projectPath: @project?.getPath()

src/app/window.coffee

@@ -49,7 +49,6 @@ windowAdditions =
       RootView.deserialize(rootViewState)
     else
       new RootView(pathToOpen)
-      @rootView.open() unless pathToOpen
 
     $(@rootViewParentSelector).append @rootView