### 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
PhysicsServer3D::get_singleton()->end_sync();
			PhysicsServer2D::get_singleton()->end_sync();
			exit = true;
			break;
		}
		uint64_t navigation_begin = OS::get_singleton()->get_ticks_usec();
		NavigationServer3D::get_singleton()->process(physics_step * time_scale);
		navigation_process_ticks = MAX(navigation_process_ticks, OS::get_singleton()->get_ticks_usec() - navigation_begin); /
		navigation_process_max = MAX(OS::get_singleton()->get_ticks_usec() - navigation_begin, navigation_process_max);
		message_queue->flush();
		PhysicsServer3D::get_singleton()->end_sync();
		PhysicsServer3D::get_singleton()->step(physics_step * time_scale);
		PhysicsServer2D::get_singleton()->end_sync();
		PhysicsServer2D::get_singleton()->step(physics_step * time_scale);
		message_queue->flush();
		physics_process_ticks = MAX(physics_process_ticks, OS::get_singleton()->get_ticks_usec() - physics_begin); /
		physics_process_max = MAX(OS::get_singleton()->get_ticks_usec() - physics_begin, physics_process_max);
		Engine::get_singleton()->_physics_frames++;
		Engine::get_singleton()->_in_physics = false;
	}
	if (Input::get_singleton()->is_using_input_buffering() && agile_input_event_flushing) {
		Input::get_singleton()->flush_buffered_events();
	}
	uint64_t process_begin = OS::get_singleton()->get_ticks_usec();
	if (OS::get_singleton()->get_main_loop()->process(process_step * time_scale)) {
		exit = true;
	}
	message_queue->flush();
	RenderingServer::get_singleton()->sync(); /
	if (DisplayServer::get_singleton()->can_any_window_draw() &&