SDL: d3d12: reset the vertex buffer size when it is released (1f82b)

SDL Commits
1 
From 1f82b4a96f54388841b5d887b67283c7524f756b Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Sun, 9 Oct 2022 09:57:55 -0700
Subject: [PATCH] d3d12: reset the vertex buffer size when it is released

(cherry-picked from commit 490c20f93f85a4e4275bdf96bcb8ffd7f266590c)
---
 src/render/direct3d12/SDL_render_d3d12.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/render/direct3d12/SDL_render_d3d12.c b/src/render/direct3d12/SDL_render_d3d12.c
index 6e76ed3b8e26..e87a568cb2a1 100644
--- a/src/render/direct3d12/SDL_render_d3d12.c
+++ b/src/render/direct3d12/SDL_render_d3d12.c
@@ -352,6 +352,7 @@ D3D12_ReleaseAll(SDL_Renderer * renderer)
 
         for (i = 0; i < SDL_D3D12_NUM_VERTEX_BUFFERS; ++i) {
             SAFE_RELEASE(data->vertexBuffers[i].resource);
+            data->vertexBuffers[i].size = 0;
         }
         
         data->swapEffect = (DXGI_SWAP_EFFECT) 0;