Fixed a bug that occurs in cases when objects without _p_jar

attributes are registered.

src/ZODB/Transaction.py

@@ -84,8 +84,8 @@
 ##############################################################################
 """Transaction management
 
-$Id: Transaction.py,v 1.22 2000/05/30 19:03:27 jim Exp $"""
-__version__='$Revision: 1.22 $'[11:-2]
+$Id: Transaction.py,v 1.23 2000/06/05 11:04:32 jim Exp $"""
+__version__='$Revision: 1.23 $'[11:-2]
 
 import time, sys, struct, POSException
 from struct import pack
@@ -239,7 +239,7 @@ class Transaction:
             try:
                 for o in objects:
                     j=getattr(o, '_p_jar', o)
-                    if j is None: continue
+                    if j is not None:
                         i=id(j)
                         if not jars.has_key(i):
                             jars[i]=j