winex11: Sending a move/resize client message to the root requires a SubstructureRedirect mask too.

dlls/winex11.drv/window.c

@@ -2671,7 +2671,7 @@ LRESULT CDECL X11DRV_SysCommand( HWND hwnd, WPARAM wparam, LPARAM lparam )
      * with a ButtonPress event */
     wine_tsx11_lock();
     XUngrabPointer( display, CurrentTime );
-    XSendEvent(display, root_window, False, SubstructureNotifyMask, &xev);
+    XSendEvent(display, root_window, False, SubstructureNotifyMask | SubstructureRedirectMask, &xev);
     wine_tsx11_unlock();
     return 0;
 }