### 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)

_update_modified_scripts_for_external_editor();
}
void ScriptEditor::notify_script_close(const Ref<Script> &p_script) {
	emit_signal(SNAME("script_close"), p_script);
}
void ScriptEditor::notify_script_changed(const Ref<Script> &p_script) {
	emit_signal(SNAME("editor_script_changed"), p_script);
}
void ScriptEditor::get_breakpoints(List<String> *p_breakpoints) {
	HashSet<String> loaded_scripts;
	for (int i = 0; i < tab_container->get_tab_count(); i++) {
		ScriptEditorBase *se = Object::cast_to<ScriptEditorBase>(tab_container->get_tab_control(i));
		if (!se) {
			continue;
		}
		Ref<Script> scr = se->get_edited_resource();
		if (scr == nullptr) {
			continue;
		}
		String base = scr->get_path();
		loaded_scripts.insert(base);
		if (base.begins_with("local://") || base.is_empty()) {
			continue;
		}
		PackedInt32Array bpoints = se->get_breakpoints();
		for (int j = 0; j < bpoints.size(); j++) {