--- a/mercurial/patch.py Sat Oct 31 18:00:05 2009 +0100
+++ b/mercurial/patch.py Sat Oct 31 18:01:08 2009 +0100
@@ -480,6 +480,8 @@
self.hunk = [ desc ]
self.a = []
self.b = []
+ self.starta = self.lena = None
+ self.startb = self.lenb = None
if context:
self.read_context_hunk(lr)
else: