Nhibernate session.BeginTransaction() vs. transaction.Begin()

Question

My question is related to use of nhibernate transactions

Is the transaction.Begin() below a problem? or just redundant?

using (var transaction = session.BeginTransaction())
{
    transaction.Begin();
    action();
    transaction.Commit();
}

Answer 1

After checking the source, transaction.Begin() is in fact redundant - a harmless no-op.

link to source