[Bug-gnubg] Tutor mode: does not give notification about doubles

[Scott Steiner]

Hi,

I'm using build 030130 but I noticed this error a long time ago with
earlier versions but never reported it.

I usually have my matches analysed at 2ply and go through them looking
at my errors.  When reviewing them after the analysis, I usually turn on
tutor mode and play on from an error with the correct move.  I have
noticed that as I play on and I eventually reach a position where I
should double, I don't get the usual popup window telling me if I want
to rethink or play anyway.  However, when I go back to that position
where the double should have come and I use the hint function, then
gnubg tells me that that was a double, so it seems that there is
something wrong with the tutor mode on doubling in this case.  Checker
play is fine.  I have tutor mode enabled for checker play and cube
decisions.

I have noticed this bug very often, but it can be tricky to artificially
reproduce this error as I noticed that I couldn't reproduce it with
manual dice - it only occured when I played naturally using the internal
RNG from a point on in a previously analysed match.

I hope I could explain the error well enough.  If you play around a
little like I explained above then I'm sure you can reproduce the error.

Regards

Scott