SDL: x11: SDL_SetWindowPosition on an unmapped window will do the actual move later.

SDL Commits
1 
From 61b1c25eeb0dc84a6f8a75ebedf4d5ef6da5e528 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Mon, 3 Feb 2025 22:50:51 -0500
Subject: [PATCH] x11: SDL_SetWindowPosition on an unmapped window will do the
 actual move later.

Fixes https://github.com/libsdl-org/sdl2-compat/issues/303
---
 src/video/x11/SDL_x11window.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/video/x11/SDL_x11window.c b/src/video/x11/SDL_x11window.c
index c8c0ffd737a22..c26ee7f5a7e03 100644
--- a/src/video/x11/SDL_x11window.c
+++ b/src/video/x11/SDL_x11window.c
@@ -1065,8 +1065,12 @@ void X11_UpdateWindowPosition(SDL_Window *window, bool use_current_position)
                                   &data->expected.x, &data->expected.y);
 
     // Attempt to move the window
-    data->pending_operation |= X11_PENDING_OP_MOVE;
-    X11_XMoveWindow(display, data->xwindow, data->expected.x, data->expected.y);
+    if (window->flags & SDL_WINDOW_HIDDEN) {
+        window->internal->pending_position = true;
+    } else {
+        data->pending_operation |= X11_PENDING_OP_MOVE;
+        X11_XMoveWindow(display, data->xwindow, data->expected.x, data->expected.y);
+    }
 }
 
 bool X11_SetWindowPosition(SDL_VideoDevice *_this, SDL_Window *window)