### Godot version

4.0 beta 12 mono

### System information

MacOS 13.1, Apple M1 Pro

### Issue description

When `text_editor/external/use_external_editor` is set to true but `text_editor/external/exec_path` is not set and I create a new script and attach it to a node Godot freezes and i need to force quit the application.
Also after a restart when double clicking on the script the application freezes but I can quit normally

### Steps to reproduce

- Set Use External Editor to true in Editor Settings and leave Exec Path empty
- Create a new project with Moblie Renderer and Git Versioning in Godot
- Create a 3D Scene
- Create a gd script in the FileSystem inspector or directly attach the script to a node

### Minimal reproduction project

[New Game Project.zip](https://github.com/godotengine/godot/files/10420510/New.Game.Project.zip)

save_all_scripts();
}
void ScriptEditor::_update_autosave_timer() {
	if (!autosave_timer->is_inside_tree()) {
		return;
	}
	float autosave_time = EDITOR_GET("text_editor/behavior/files/autosave_interval_secs");
	if (autosave_time > 0) {
		autosave_timer->set_wait_time(autosave_time);
		autosave_timer->start();
	} else {
		autosave_timer->stop();
	}
}
void ScriptEditor::_tree_changed() {
	if (waiting_update_names) {
		return;
	}
	waiting_update_names = true;
	call_deferred(SNAME("_update_script_names"));
}
void ScriptEditor::_split_dragged(float) {
	_save_layout();
}
Variant ScriptEditor::get_drag_data_fw(const Point2 &p_point, Control *p_from) {
	if (tab_container->get_tab_count() == 0) {
		return Variant();