SDL: video: Don't overwrite all the pending flags in the OnWindowHidden handler

From 1e790b20c9b44986d405fdbaaeba5ebbf319b386 Mon Sep 17 00:00:00 2001
From: Frank Praznik <[EMAIL REDACTED]>
Date: Mon, 4 Mar 2024 10:29:43 -0500
Subject: [PATCH] video: Don't overwrite all the pending flags in the
 OnWindowHidden handler

Other flags may have been set when programmatically hiding a window, so or in the fullscreen and maximized flags to avoid accidentally clearing any others.
---
 src/video/SDL_video.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/video/SDL_video.c b/src/video/SDL_video.c
index e52e80d2a90f..a1fb6b3fb309 100644
--- a/src/video/SDL_video.c
+++ b/src/video/SDL_video.c
@@ -3460,7 +3460,7 @@ void SDL_OnWindowHidden(SDL_Window *window)
      * this was initiated by the window manager due to the window being unmapped
      * when minimized.
      */
-    window->pending_flags = (window->flags & (SDL_WINDOW_FULLSCREEN | SDL_WINDOW_MAXIMIZED));
+    window->pending_flags |= (window->flags & (SDL_WINDOW_FULLSCREEN | SDL_WINDOW_MAXIMIZED));
 
     /* The window is already hidden at this point, so just change the mode back if necessary. */
     SDL_UpdateFullscreenMode(window, SDL_FALSE, SDL_FALSE);