From d82928eb494d3d0856eac85e82b9cd835a368f96 Mon Sep 17 00:00:00 2001
From: volzhs <volzhs@gmail.com>
Date: Sat, 5 Nov 2016 00:52:53 +0900
Subject: [PATCH] Prevent to make UndoRedo for duplicate if no selected node

---
 tools/editor/scene_tree_dock.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/editor/scene_tree_dock.cpp b/tools/editor/scene_tree_dock.cpp
index b4d32eb5c2..85623b029b 100644
--- a/tools/editor/scene_tree_dock.cpp
+++ b/tools/editor/scene_tree_dock.cpp
@@ -517,6 +517,8 @@ void SceneTreeDock::_tool_selected(int p_tool, bool p_confirm_override) {
 				break;
 
 			List<Node*> selection = editor_selection->get_selected_node_list();
+			if (selection.size()==0)
+				break;
 
 			List<Node*> reselect;