From 5c5341b5e50b09814a32977dcdb402454e76096e Mon Sep 17 00:00:00 2001
From: Damien Elmes <git@ichi2.net>
Date: Tue, 20 Mar 2012 00:37:39 +0900
Subject: [PATCH] make sure we don't modify the active decks during scheduling

---
 anki/decks.py | 2 +-
 anki/sched.py | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/anki/decks.py b/anki/decks.py
index 7b96f6bd6..bb6da9130 100644
--- a/anki/decks.py
+++ b/anki/decks.py
@@ -335,7 +335,7 @@ class DeckManager(object):
     #############################################################
 
     def active(self):
-        "The currrently active dids."
+        "The currrently active dids. Make sure to copy before modifying."
         return self.col.conf['activeDecks']
 
     def selected(self):
diff --git a/anki/sched.py b/anki/sched.py
index aea751d9d..ea496cc6e 100644
--- a/anki/sched.py
+++ b/anki/sched.py
@@ -274,7 +274,7 @@ did = ? and queue = 0 limit ?)""", did, lim)
 
     def _resetNew(self):
         self._resetNewCount()
-        self._newDids = self.col.decks.active()
+        self._newDids = self.col.decks.active()[:]
         self._newQueue = []
         self._updateNewCardRatio()
 
@@ -569,7 +569,7 @@ did = ? and queue = 2 and due <= ? limit %d)""" % lim,
     def _resetRev(self):
         self._resetRevCount()
         self._revQueue = []
-        self._revDids = self.col.decks.active()
+        self._revDids = self.col.decks.active()[:]
 
     def _fillRev(self):
         if self._revQueue: