Record object ARData may contain wrong content once IRT was used

The record object ARData lists all currently established ARs with their properties. This object returns wrong content after the following sequence:

1. An AR was established with IRT
2. The AR is released and again established as RT AR (without IRT)

After that the object contains an IRInfoBlock for the RT-AR although such an block was not sent by the controller.

It is expected that IRInfoBlock is generated only when it was sent by the controller during connect.