SDL: direct3d: Fix possibly-incorrect scissor test when clearing.

SDL Commits
1 
From 585c11c5aef170a181402184fa0dcbd31653fe02 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Fri, 30 Jul 2021 00:33:15 -0400
Subject: [PATCH] direct3d: Fix possibly-incorrect scissor test when clearing.

Thanks to @JayFoxRox who did the detective work on this!

Fixes #3357.
---
 src/render/direct3d/SDL_render_d3d.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/render/direct3d/SDL_render_d3d.c b/src/render/direct3d/SDL_render_d3d.c
index 7cb41b9d83..30d9b02f05 100644
--- a/src/render/direct3d/SDL_render_d3d.c
+++ b/src/render/direct3d/SDL_render_d3d.c
@@ -1319,9 +1319,9 @@ D3D_RunCommandQueue(SDL_Renderer * renderer, SDL_RenderCommand *cmd, void *verti
                 const int backw = istarget ? renderer->target->w : data->pparams.BackBufferWidth;
                 const int backh = istarget ? renderer->target->h : data->pparams.BackBufferHeight;
 
-                if (data->drawstate.cliprect_enabled) {
+                if (data->drawstate.cliprect_enabled || data->drawstate.cliprect_enabled_dirty) {
                     IDirect3DDevice9_SetRenderState(data->device, D3DRS_SCISSORTESTENABLE, FALSE);
-                    data->drawstate.cliprect_enabled_dirty = SDL_TRUE;
+                    data->drawstate.cliprect_enabled_dirty = data->drawstate.cliprect_enabled;
                 }
 
                 /* Don't reset the viewport if we don't have to! */