From 49dc6d97e191711af9fae8ec70d677837a94ef8a Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Mon, 18 Aug 2008 07:03:10 -0700
Subject: [PATCH] Fix regression affecting conversion of feeds with embedded
 content

---
 src/calibre/utils/genshi/output.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/calibre/utils/genshi/output.py b/src/calibre/utils/genshi/output.py
index 3664d92f37..00c4f849bf 100644
--- a/src/calibre/utils/genshi/output.py
+++ b/src/calibre/utils/genshi/output.py
@@ -648,7 +648,7 @@ class NamespaceFlattener(object):
             elif kind is END_NS:
                 if data is '':
                     default.pop()
-                if data in prefixes:
+                if data in prefixes and prefixes.get(data):
                     uris = prefixes.get(data)
                     uri = uris.pop()
                     if not uris: