From 59078f3b962cc978982b01086e5e17f3c4148aad Mon Sep 17 00:00:00 2001
From: Charles Haley <>
Date: Thu, 13 Jan 2011 15:40:42 +0000
Subject: [PATCH] Clean away existing functions when loading preferences to
 avoid problems when changing libraries

---
 src/calibre/utils/formatter_functions.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/calibre/utils/formatter_functions.py b/src/calibre/utils/formatter_functions.py
index 6b79e23b5e..92ebe72706 100644
--- a/src/calibre/utils/formatter_functions.py
+++ b/src/calibre/utils/formatter_functions.py
@@ -460,6 +460,7 @@ class UserFunction(FormatterUserFunction):
     return cls
 
 def load_user_template_functions(funcs):
+    formatter_functions.reset_to_builtins()
     for func in funcs:
         try:
             cls = compile_user_function(*func)