From d84ba48d8f26522e74c18b5c57182f7cb0236dcb Mon Sep 17 00:00:00 2001
From: kobewi <kobewi4e@gmail.com>
Date: Mon, 20 Nov 2023 21:57:21 +0100
Subject: [PATCH] Avoid saving scene while already saving the scene

---
 editor/editor_node.cpp | 6 ++++++
 editor/editor_node.h   | 1 +
 2 files changed, 7 insertions(+)

diff --git a/editor/editor_node.cpp b/editor/editor_node.cpp
index 6012ff1f70a..b6c97f0c8f3 100644
--- a/editor/editor_node.cpp
+++ b/editor/editor_node.cpp
@@ -1761,6 +1761,10 @@ static void _reset_animation_mixers(Node *p_node, List<Pair<AnimationMixer *, Re
 }
 
 void EditorNode::_save_scene(String p_file, int idx) {
+	if (!saving_scene.is_empty() && saving_scene == p_file) {
+		return;
+	}
+
 	Node *scene = editor_data.get_edited_scene_root(idx);
 
 	if (!scene) {
@@ -1817,7 +1821,9 @@ void EditorNode::_save_scene(String p_file, int idx) {
 	emit_signal(SNAME("scene_saved"), p_file);
 
 	_save_external_resources();
+	saving_scene = p_file; // Some editors may save scenes of built-in resources as external data, so avoid saving this scene again.
 	editor_data.save_editor_external_data();
+	saving_scene = "";
 
 	for (Pair<AnimationMixer *, Ref<AnimatedValuesBackup>> &E : anim_backups) {
 		E.first->restore(E.second);
diff --git a/editor/editor_node.h b/editor/editor_node.h
index d4a8fc9aa8b..956058ecfcb 100644
--- a/editor/editor_node.h
+++ b/editor/editor_node.h
@@ -481,6 +481,7 @@ private:
 	String _tmp_import_path;
 	String external_file;
 	String open_navigate;
+	String saving_scene;
 
 	DynamicFontImportSettings *fontdata_import_settings = nullptr;
 	SceneImportSettings *scene_import_settings = nullptr;