From 89c33c3713eaa518cab5c6cfd8210463d14ac8f4 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Fri, 8 Nov 2013 12:39:29 +0530
Subject: [PATCH] Fix rewind_savepoint() not working

---
 src/calibre/gui2/tweak_book/undo.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/calibre/gui2/tweak_book/undo.py b/src/calibre/gui2/tweak_book/undo.py
index f9bd9ba810..ae388c56ce 100644
--- a/src/calibre/gui2/tweak_book/undo.py
+++ b/src/calibre/gui2/tweak_book/undo.py
@@ -57,7 +57,7 @@ class GlobalUndoHistory(object):
         revert to state before creating savepoint. '''
         if self.pos > 0 and self.pos == len(self.states) - 1:
             self.pos -= 1
-            cleanup(self.states.pop())
+            cleanup([self.states.pop().container])
             ans = self.current_container
             ans.message = None
             return ans