From c11a2b416e4d477a3da5b1583755ad91f5bc6648 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Mon, 9 Jan 2012 12:46:52 +0530
Subject: [PATCH] ...

---
 src/calibre/library/database2.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/calibre/library/database2.py b/src/calibre/library/database2.py
index d55c1e0741..b545a5ed3b 100644
--- a/src/calibre/library/database2.py
+++ b/src/calibre/library/database2.py
@@ -3179,6 +3179,8 @@ class LibraryDatabase2(LibraryDatabase, SchemaUpgrade, CustomColumns):
 
     def create_book_entry(self, mi, cover=None, add_duplicates=True,
             force_id=None):
+        if mi.tags:
+            mi.tags = list(mi.tags)
         self._add_newbook_tag(mi)
         if not add_duplicates and self.has_book(mi):
             return None