### 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)

continue;
		}
		se->update_settings();
	}
	_update_script_colors();
	_update_script_names();
	ScriptServer::set_reload_scripts_on_save(EDITOR_GET("text_editor/behavior/files/auto_reload_and_parse_scripts_on_save"));
}
void ScriptEditor::_filesystem_changed() {
	_update_script_names();
}
void ScriptEditor::_files_moved(const String &p_old_file, const String &p_new_file) {
	if (!script_editor_cache->has_section(p_old_file)) {
		return;
	}
	Variant state = script_editor_cache->get_value(p_old_file, "state");
	script_editor_cache->erase_section(p_old_file);
	script_editor_cache->set_value(p_new_file, "state", state);
	
	Array breakpoints = _get_cached_breakpoints_for_script(p_new_file);
	for (int i = 0; i < breakpoints.size(); i++) {
		int line = (int)breakpoints[i] + 1;
		EditorDebuggerNode::get_singleton()->set_breakpoint(p_old_file, line, false);
		if (!p_new_file.begins_with("local://") && ResourceLoader::exists(p_new_file, "Script")) {
			EditorDebuggerNode::get_singleton()->set_breakpoint(p_new_file, line, true);
		}
	}
	
}
void ScriptEditor::_file_removed(const String &p_removed_file) {