### Godot version

4.0 Beta 11

### System information

Windows 10 version 22H2, GeForce Game Ready Driver Version 528.02, GTX 1070

### Issue description

Since Beta 11 this error is given whenever a project is run in the forward+ renderer with OpenXR enabled. This error is not present with Beta 10 and previous versions.
![image](https://user-images.githubusercontent.com/38119387/212044209-1179b908-f010-47a1-ae53-bc2faadc30de.png)

I've tested with projects created in previous versions as well as the current version (Beta 11)

### Steps to reproduce

Create project, enable OpenXR in project settings, and run.

### Minimal reproduction project

N/A
if (XR_SUCCEEDED(result))
		return true;
	char resultString[XR_MAX_RESULT_STRING_SIZE];
	xrResultToString(instance, result, resultString);
	print_error(String("OpenXR ") + String(format).format(args) + String(" [") + String(resultString) + String("]"));
	return false;
}
RID OpenXRAPI::get_tracker_rid(XrPath p_path) {
	List<RID> current;
	tracker_owner.get_owned_list(&current);
	for (int i = 0; i < current.size(); i++) {
		Tracker *tracker = tracker_owner.get_or_null(current[i]);
		if (tracker && tracker->toplevel_path == p_path) {
			return current[i];
		}
	}
	return RID();
}
RID OpenXRAPI::tracker_create(const String p_name) {