When the LU 6.2
implementation (section 3.2) receives a TXUSER_DTCLURMENLISTMENT_MTAG_TO_LU_COMMITTED
message, it MUST perform the following actions:
If the connection state is Awaiting Transaction Outcome:
a Commit request to the higher-layer business logic.
the connection state to Finalizing Commit Operations.
Otherwise, the message MUST be processed as an invalid message,
as specified in [MS-DTCO],