Root node of a scene is now selected when the scene is opened.

editor/editor_node.cpp

@@ -2972,6 +2972,7 @@ Error EditorNode::load_scene(const String &p_scene, bool p_ignore_broken_deps, b
 
 	prev_scene->set_disabled(previous_scenes.size() == 0);
 	opening_prev = false;
+	scene_tree_dock->set_selected(new_scene);
 
 	ScriptEditor::get_singleton()->get_debugger()->update_live_edit_root();