Submitted by: Barry Schwarz (bschw)

Assigned to: @carlosga

If innerConnection.EnlistTransaction fails within FbConnection.Open the innerConnection is not properly disposed of or returned to the
connection pool. I encountered this problem when I attempted to Open a connection fater an ambient transaction timed out. As a result,
the embedded database fiel was left locked after all associated connections were closed. This problem was soleved by wrapping
the EnlistTransaction call in a catch block that cleans up the innerConnection prior to rethrowing the exception.

try
{
if (this.options.Enlist && (System.Transactions.Transaction.Current != null))
{
this.innerConnection.EnlistTransaction(System.Transactions.Transaction.Current,
this.connectionString);
}
}
catch
{
// if enlistment fails clean up innerConnection
this.innerConnection.DisposeTransaction();

                    if \(this\.innerConnection\.Pooled\)
                    \{
                        // Send	connection to the Pool
                        FbPoolManager\.Instance\.GetPool\(this\.connectionString\)\.CheckIn\(this\.innerConnection\);
                    \}
                    else
                    \{
                        this\.innerConnection\.Dispose\(\);
                        this\.innerConnection = null;
                    \}
                    throw;
                \}

Commits: ed4e096 b2fedd5