From 16cb7d308361b063e34802affbb3ac8ed8296684 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Wed, 16 Oct 2024 21:02:41 +0530
Subject: [PATCH] ...

---
 src/calibre/gui2/tts/types.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/calibre/gui2/tts/types.py b/src/calibre/gui2/tts/types.py
index 547d4fef67..3f78220608 100644
--- a/src/calibre/gui2/tts/types.py
+++ b/src/calibre/gui2/tts/types.py
@@ -16,7 +16,9 @@ from calibre.utils.localization import canonicalize_lang
 
 CONFIG_NAME = 'tts'
 TTS_EMBEDED_CONFIG = 'tts-embedded'
-conf_cache = {}  # for some reason LRU cache doesn't work for this
+# lru_cache doesn't work for this because it returns different results for
+# load_config() and load_config(CONFIG_NAME)
+conf_cache = {}
 
 
 def load_config(config_name=CONFIG_NAME) -> JSONConfig: