### 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(instance == XR_NULL_HANDLE, false);
	OPENXR_API_INIT_XR_FUNC_V(xrAcquireSwapchainImage);
	OPENXR_API_INIT_XR_FUNC_V(xrApplyHapticFeedback);
	OPENXR_API_INIT_XR_FUNC_V(xrAttachSessionActionSets);
	OPENXR_API_INIT_XR_FUNC_V(xrBeginFrame);
	OPENXR_API_INIT_XR_FUNC_V(xrBeginSession);
	OPENXR_API_INIT_XR_FUNC_V(xrCreateAction);
	OPENXR_API_INIT_XR_FUNC_V(xrCreateActionSet);
	OPENXR_API_INIT_XR_FUNC_V(xrCreateActionSpace);
	OPENXR_API_INIT_XR_FUNC_V(xrCreateReferenceSpace);
	OPENXR_API_INIT_XR_FUNC_V(xrCreateSession);
	OPENXR_API_INIT_XR_FUNC_V(xrCreateSwapchain);
	OPENXR_API_INIT_XR_FUNC_V(xrDestroyAction);
	OPENXR_API_INIT_XR_FUNC_V(xrDestroyActionSet);
	OPENXR_API_INIT_XR_FUNC_V(xrDestroyInstance);
	OPENXR_API_INIT_XR_FUNC_V(xrDestroySession);
	OPENXR_API_INIT_XR_FUNC_V(xrDestroySpace);
	OPENXR_API_INIT_XR_FUNC_V(xrDestroySwapchain);
	OPENXR_API_INIT_XR_FUNC_V(xrEndFrame);
	OPENXR_API_INIT_XR_FUNC_V(xrEndSession);
	OPENXR_API_INIT_XR_FUNC_V(xrEnumerateReferenceSpaces);
	OPENXR_API_INIT_XR_FUNC_V(xrEnumerateSwapchainFormats);
	OPENXR_API_INIT_XR_FUNC_V(xrEnumerateViewConfigurations);
	OPENXR_API_INIT_XR_FUNC_V(xrEnumerateViewConfigurationViews);
	OPENXR_API_INIT_XR_FUNC_V(xrGetActionStateBoolean);