[Bug-gnubg] Crash on entering matchid

[Holger]

Hi all,

Just a short bug report. On entering the following matchid gnubg crashes 
(on Windows): 8AkgAAAAAAAA
(Accompanying posid is ds8DAGBr24AAOA, no problem with this.)

The funny thing is that I've got this pos from a match that I loaded 
before. Even going to the same pos and hitting enter on the matchid gives a 
crash.

Regards,

        Holger