### 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
Engine::get_singleton()->set_time_scale(I->next()->get().to_float());
				N = I->next()->next();
			} else {
				OS::get_singleton()->print("Missing time scale argument, aborting.\n");
				goto error;
			}
		} else if (I->get() == "--main-pack") {
			if (I->next()) {
				main_pack = I->next()->get();
				N = I->next()->next();
			} else {
				OS::get_singleton()->print("Missing path to main pack file, aborting.\n");
				goto error;
			};
		} else if (I->get() == "-d" || I->get() == "--debug") {
			debug_uri = "local://";
			OS::get_singleton()->_debug_stdout = true;
#if defined(DEBUG_ENABLED)
		} else if (I->get() == "--debug-collisions") {
			debug_collisions = true;
		} else if (I->get() == "--debug-paths") {
			debug_paths = true;
		} else if (I->get() == "--debug-navigation") {
			debug_navigation = true;
		} else if (I->get() == "--debug-avoidance") {
			debug_avoidance = true;
		} else if (I->get() == "--debug-stringnames") {
			StringName::set_debug_stringnames(true);
#endif
		} else if (I->get() == "--remote-debug") {