### 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, false);
	ERR_FAIL_NULL_V(graphics_extension, false);
	XrResult result;
	void *next_pointer = nullptr;
	for (OpenXRExtensionWrapper *wrapper : registered_extension_wrappers) {
		void *np = wrapper->set_swapchain_create_info_and_get_next_pointer(next_pointer);
		if (np != nullptr) {
			next_pointer = np;
		}
	}
	XrSwapchainCreateInfo swapchain_create_info = {
		XR_TYPE_SWAPCHAIN_CREATE_INFO, 
		next_pointer, 
		0, 
		p_usage_flags, 
		p_swapchain_format, 
		p_sample_count, 
		p_width, 
		p_height, 
		1, 
		p_array_size, 
		1 
	};
	XrSwapchain new_swapchain;
	result = xrCreateSwapchain(session, &swapchain_create_info, &new_swapchain);
	if (XR_FAILED(result)) {
		print_line("OpenXR: Failed to get swapchain [", get_error_string(result), "]");
		return false;
	}
	if (!graphics_extension->get_swapchain_image_data(new_swapchain, p_swapchain_format, p_width, p_height, p_sample_count, p_array_size, r_swapchain_graphics_data)) {