### 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
ERR_FAIL_COND_V(session == XR_NULL_HANDLE, 0.0);
	Action *action = action_owner.get_or_null(p_action);
	ERR_FAIL_NULL_V(action, 0.0);
	Tracker *tracker = tracker_owner.get_or_null(p_tracker);
	ERR_FAIL_NULL_V(tracker, 0.0);
	if (!running) {
		return 0.0;
	}
	ERR_FAIL_COND_V(action->action_type != XR_ACTION_TYPE_FLOAT_INPUT, 0.0);
	XrActionStateGetInfo get_info = {
		XR_TYPE_ACTION_STATE_GET_INFO, 
		nullptr, 
		action->handle, 
		tracker->toplevel_path 
	};
	XrActionStateFloat result_state;
	result_state.type = XR_TYPE_ACTION_STATE_FLOAT,
	result_state.next = nullptr;
	XrResult result = xrGetActionStateFloat(session, &get_info, &result_state);
	if (XR_FAILED(result)) {
		print_line("OpenXR: couldn't get action float! [", get_error_string(result), "]");
		return 0.0;
	}
	return result_state.isActive ? result_state.currentState : 0.0;
}
Vector2 OpenXRAPI::get_action_vector2(RID p_action, RID p_tracker) {