wayland: Add a note for why we check 0,0 for fullscreen configurations
diff --git a/src/video/wayland/SDL_waylandwindow.c b/src/video/wayland/SDL_waylandwindow.c
index 6d33caf..f161c85 100644
--- a/src/video/wayland/SDL_waylandwindow.c
+++ b/src/video/wayland/SDL_waylandwindow.c
@@ -289,6 +289,9 @@ handle_configure_xdg_toplevel(void *data,
} else {
/* For fullscreen, foolishly do what the compositor says. If it's wrong,
* don't blame us, we were explicitly instructed to do this.
+ *
+ * UPDATE: Nope, sure enough a compositor sends 0,0. This is a known bug:
+ * https://bugs.kde.org/show_bug.cgi?id=444962
*/
if (width != 0 && height != 0) {
window->w = width;