### 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)

};
void ScriptEditorQuickOpen::popup_dialog(const Vector<String> &p_functions, bool p_dontclear) {
	popup_centered_ratio(0.6);
	if (p_dontclear) {
		search_box->select_all();
	} else {
		search_box->clear();
	}
	search_box->grab_focus();
	functions = p_functions;
	_update_search();
}
void ScriptEditorQuickOpen::_text_changed(const String &p_newtext) {