### Godot version

4.1 24cb43a

### System information

Windows 10 x64

### Issue description

Every time I launch Godot, I'm greeted with this in my console:
```
ERROR: Resource file not found: res://InputEventKey_7cuxk.
   at: (core\io\resource_loader.cpp:227)
```
Seems to be only happening in Project Manager and comes from this:
![](https://chat.godotengine.org/file-upload/udqZP8NQfogp4rjRL/Clipboard%20-%2021%20kwietnia%202023%2022:24)
It's part of my `editor_settings-4.tres`. I didn't test, but I think it applies to any shortcut that you customize. For some reason ResourceLoader tries to load it as a project resource, while it's a sub-resource.

Does not happen in 4.0.2.

### Steps to reproduce

1. Open Godot 4.1 project manager
2. Check the console

### Minimal reproduction project

N/A
GLOBAL_DEF_RST_NOVAL("input_devices/pen_tablet/driver", "");
		GLOBAL_DEF_RST_NOVAL(PropertyInfo(Variant::STRING, "input_devices/pen_tablet/driver.windows", PROPERTY_HINT_ENUM, "wintab,winink"), "");
	}
	if (tablet_driver.is_empty()) { 
		tablet_driver = GLOBAL_GET("input_devices/pen_tablet/driver");
		if (tablet_driver.is_empty()) {
			tablet_driver = DisplayServer::get_singleton()->tablet_get_driver_name(0);
		}
	}
	for (int i = 0; i < DisplayServer::get_singleton()->tablet_get_driver_count(); i++) {
		if (tablet_driver == DisplayServer::get_singleton()->tablet_get_driver_name(i)) {
			DisplayServer::get_singleton()->tablet_set_current_driver(DisplayServer::get_singleton()->tablet_get_driver_name(i));
			break;
		}
	}
	if (DisplayServer::get_singleton()->tablet_get_current_driver().is_empty()) {
		DisplayServer::get_singleton()->tablet_set_current_driver(DisplayServer::get_singleton()->tablet_get_driver_name(0));
	}
	print_verbose("Using \"" + tablet_driver + "\" pen tablet driver...");
	
	rendering_server = memnew(RenderingServerDefault(OS::get_singleton()->get_render_thread_mode() == OS::RENDER_SEPARATE_THREAD));
	rendering_server->init();
	
	rendering_server->set_render_loop_enabled(!disable_render_loop);
	if (profile_gpu || (!editor && bool(GLOBAL_GET("debug/settings/stdout/print_gpu_profile")))) {
		rendering_server->set_print_gpu_profile(true);
	}
	if (Engine::get_singleton()->get_write_movie_path() != String()) {
		movie_writer = MovieWriter::find_writer_for_file(Engine::get_singleton()->get_write_movie_path());
		if (movie_writer == nullptr) {