SDL: wayland: Fix non-floating libdecor window sizing

SDL Commits
#1 
From 0bf91e16b7e11ee04f040142ebe1a5a0263b469d Mon Sep 17 00:00:00 2001
From: Frank Praznik <[EMAIL REDACTED]>
Date: Fri, 3 Feb 2023 11:07:31 -0500
Subject: [PATCH] wayland: Fix non-floating libdecor window sizing

---
 src/video/wayland/SDL_waylandwindow.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/video/wayland/SDL_waylandwindow.c b/src/video/wayland/SDL_waylandwindow.c
index 5519a7975d89..5282554c3051 100644
--- a/src/video/wayland/SDL_waylandwindow.c
+++ b/src/video/wayland/SDL_waylandwindow.c
@@ -794,7 +794,7 @@ static void decoration_frame_configure(struct libdecor_frame *frame,
          *
          *      https://gitlab.gnome.org/jadahl/libdecor/-/issues/40
          */
-        const SDL_bool use_cached_size = (floating != wind->floating) ||
+        const SDL_bool use_cached_size = (floating && !wind->floating) ||
                                          (window->is_hiding || !!(window->flags & SDL_WINDOW_HIDDEN));
 
         /* This will never set 0 for width/height unless the function returns false */