mono/mono — pull request #484 by roji (2012-10-24 17:06:24+00:00)
Title: Transaction now has limited support for PromotableSinglePhaseEnlistment

System.Transactions.Transaction is only partially implemented, and was lacking support for enlistments of type PromotableSinglePhaseEnlistment.
Specifically, this prevented usage of Npgsql with the ambient transactions feature (TransactionScope).