From bbbeeb8206b9d8258836d99220106a4dd822b6ef Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sat, 2 Aug 2025 12:48:04 +0530
Subject: [PATCH] More rigorous set layout state sanity check

---
 kitty/layout/splits.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kitty/layout/splits.py b/kitty/layout/splits.py
index e8227d1cf..105e48fd8 100644
--- a/kitty/layout/splits.py
+++ b/kitty/layout/splits.py
@@ -713,7 +713,8 @@ class Splits(Layout):
     def set_layout_state(self, layout_state: dict[str, Any], map_window_id: WindowMapper) -> bool:
         new_root = Pair()
         new_root.unserialize(layout_state['pairs'], map_window_id)
-        if new_root.one or new_root.two:
+        before = frozenset(self.pairs_root.all_window_ids())
+        if before == frozenset(new_root.all_window_ids()):
             self.pairs_root = new_root
             self.layout_opts = SplitsLayoutOpts(layout_state['opts'])
             return True