[Bug-gnubg] question about coding of matchId

[Misja Alma]

Hi,

I'm writing an application that can use your matchId as an input. I found
the explanation of how matchId is coded in the gnubg tutorial. But I have
one question left: Bits 16-18 and 19-21 are used to code the dice. It says
in the description that when the dice are not yet rolled, those bits will
all be zero. But now I noticed that in the initial position the bits are all
ones, as if I just rolled 7-7. Does the value of 7 for a die really have a
specific meaning? Or have I made a mistake somewhere?

Thanks,
Misja