From cd8beea3bf12bc3386ceac026dd76f36a7a5036c Mon Sep 17 00:00:00 2001
From: volzhs <volzhs@gmail.com>
Date: Wed, 24 Aug 2016 02:19:48 +0900
Subject: [PATCH] Prevent to add node to selection when node is not inside tree

(cherry picked from commit 4857eabddb3eda7fef9ee3740a0325265209c640)
---
 tools/editor/editor_data.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/editor/editor_data.cpp b/tools/editor/editor_data.cpp
index 8d3fd6c9c2f..35ec1ebfcca 100644
--- a/tools/editor/editor_data.cpp
+++ b/tools/editor/editor_data.cpp
@@ -834,7 +834,7 @@ void EditorSelection::_node_removed(Node *p_node) {
 void EditorSelection::add_node(Node *p_node) {
 
 	ERR_FAIL_NULL(p_node);
-
+	ERR_FAIL_COND(!p_node->is_inside_tree());
 	if (selection.has(p_node))
 		return;