From e343610b0e3dae66939efc72678759f7b66d6a35 Mon Sep 17 00:00:00 2001
From: "Andrii Doroshenko (Xrayez)" <xrayez@gmail.com>
Date: Fri, 21 Sep 2018 12:48:26 +0300
Subject: [PATCH] Fix blend tree editor updating invalid blend tree node graph

Editing unreferenced blend tree caused SIGSEGV when updating node graph.

Fixes #22037
---
 editor/plugins/animation_blend_tree_editor_plugin.cpp | 2 --
 1 file changed, 2 deletions(-)

diff --git a/editor/plugins/animation_blend_tree_editor_plugin.cpp b/editor/plugins/animation_blend_tree_editor_plugin.cpp
index 19d5243776d..6121278d4a5 100644
--- a/editor/plugins/animation_blend_tree_editor_plugin.cpp
+++ b/editor/plugins/animation_blend_tree_editor_plugin.cpp
@@ -846,8 +846,6 @@ void AnimationNodeBlendTreeEditor::edit(const Ref<AnimationNode> &p_node) {
 
 	if (p_node.is_valid()) {
 		blend_tree = p_node;
-	} else {
-		blend_tree.unref();
 	}
 
 	if (blend_tree.is_null()) {