### 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)

TypedArray<ScriptEditorBase> script_editors;
	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;
		}
		script_editors.push_back(se);
	}
	return script_editors;
}
void ScriptEditor::set_scene_root_script(Ref<Script> p_script) {
	
	bool use_external_editor =
			EDITOR_GET("text_editor/external/use_external_editor") ||
			(p_script.is_valid() && p_script->get_language()->overrides_external_editor());
	use_external_editor = use_external_editor && !(p_script.is_valid() && p_script->is_built_in()); 
	const bool open_dominant = EDITOR_GET("text_editor/behavior/files/open_dominant_script_on_scene_change");
	if (open_dominant && !use_external_editor && p_script.is_valid()) {
		edit(p_script);
	}
}
bool ScriptEditor::script_goto_method(Ref<Script> p_script, const String &p_method) {