From 5ea4a8b4214571087a42a29b2caf9053bbb2e548 Mon Sep 17 00:00:00 2001
From: Haoyu Qiu <timothyqiu32@gmail.com>
Date: Tue, 25 Jan 2022 20:18:40 +0800
Subject: [PATCH] Fix crash after renaming an animation node

---
 editor/plugins/animation_blend_tree_editor_plugin.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/editor/plugins/animation_blend_tree_editor_plugin.cpp b/editor/plugins/animation_blend_tree_editor_plugin.cpp
index b889742b19f5..e46c81b77e59 100644
--- a/editor/plugins/animation_blend_tree_editor_plugin.cpp
+++ b/editor/plugins/animation_blend_tree_editor_plugin.cpp
@@ -898,6 +898,9 @@ void AnimationNodeBlendTreeEditor::_node_renamed(const String &p_text, Ref<Anima
 }
 
 void AnimationNodeBlendTreeEditor::_node_renamed_focus_out(Node *le, Ref<AnimationNode> p_node) {
+	if (le == nullptr) {
+		return; // The text_submitted signal triggered the graph update and freed the LineEdit.
+	}
 	_node_renamed(le->call("get_text"), p_node);
 }