4198: Person view does not remove a row correctly when two people are merged.

This patch improves on the context changes:
 * avoid use of transaction_xx methods
 * force an abort in case of unclean transaction

Backward compatibility is broken to achieve this.


svn: r16680

src/web/dbdjango.py

@@ -425,7 +425,7 @@ class DbDjango(DbReadBase, DbWriteBase):
         print "object key:", obj_key
         return []
 
-    def transaction_begin(self, msg, batch, no_magic):
+    def transaction_begin(self, transaction):
         return 
 
     def disable_signals(self):