SDL: wayland: Ensure that the toplevel window is recreated when switching decoration modes (88299)

SDL Commits
1 
From 88299502b4e2cb62a186a9804789d5aa83744cd3 Mon Sep 17 00:00:00 2001
From: Frank Praznik <[EMAIL REDACTED]>
Date: Wed, 6 Sep 2023 12:18:27 -0400
Subject: [PATCH] wayland: Ensure that the toplevel window is recreated when
 switching decoration modes

If a compositor tries to change the decoration mode when initially creating a window, the hidden flag might not yet be unset if the decoration mode is changed during the initial roundtrip in Wayland_ShowWindow(). As hiding the window destroys the decoration manager object, the hidden flag check is unnecessary, as the decoration configuration listener will never be entered when the window is hidden.

(cherry picked from commit 37e1fc3b5894f379f4f8253b867a76a135213a7d)
---
 src/video/wayland/SDL_waylandwindow.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/video/wayland/SDL_waylandwindow.c b/src/video/wayland/SDL_waylandwindow.c
index a1ebf750700a..f539fe994abe 100644
--- a/src/video/wayland/SDL_waylandwindow.c
+++ b/src/video/wayland/SDL_waylandwindow.c
@@ -755,11 +755,10 @@ static void handle_configure_zxdg_decoration(void *data,
         WAYLAND_wl_display_roundtrip(driverdata->waylandData->display);
 
         Wayland_HideWindow(device, window);
+        SDL_zero(driverdata->shell_surface);
         driverdata->shell_surface_type = WAYLAND_SURFACE_LIBDECOR;
 
-        if (!window->is_hiding && !(window->flags & SDL_WINDOW_HIDDEN)) {
-            Wayland_ShowWindow(device, window);
-        }
+        Wayland_ShowWindow(device, window);
     }
 }