### 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)

if (p_current != p_base && p_current->get_owner() != p_base) {
		return;
	}
	if (p_current->get_script_instance()) {
		Ref<Script> scr = p_current->get_script();
		if (scr.is_valid()) {
			used.insert(scr);
		}
	}
	for (int i = 0; i < p_current->get_child_count(); i++) {
		_find_scripts(p_base, p_current->get_child(i), used);
	}
}
struct _ScriptEditorItemData {
	String name;
	String sort_key;
	Ref<Texture2D> icon;
	bool tool = false;
	int index = 0;
	String tooltip;
	bool used = false;
	int category = 0;
	Node *ref = nullptr;
	bool operator<(const _ScriptEditorItemData &id) const {