No longer reconfigures when config.json is not saved.

src/window.cc

@@ -177,7 +177,7 @@ void Window::create_menu() {
   });
 
   menu.action_group->add(Gtk::Action::create("FileSave", "Save"), Gtk::AccelKey(menu.key_map["save"]), [this]() {
-    notebook.save_current();
+    if(notebook.save_current()) {
       if(notebook.get_current_page()!=-1) {
         if(notebook.get_current_view()->file_path==Singleton::config_dir()+"config.json") {
           configure();
@@ -185,6 +185,7 @@ void Window::create_menu() {
             notebook.get_view(c)->configure();
         }
       }
+    }
   });
 
   menu.action_group->add(Gtk::Action::create("EditCopy", "Copy"), Gtk::AccelKey(menu.key_map["edit_copy"]), [this]() {