Fix setting default piece from 'choice' command

PieceToCharwas used instead of CharToPiece. In addition it is important
to deduce the color from currentMoe rather than forwardMostMove, as
one could be entering a move in the middle of a game (e.g. when editing
or starting a variation).

diff --git a/backend.c b/backend.c
index da945a6..c2a5bfc 100644 (file)
--- a/backend.c
+++ b/backend.c
@@ -9084,7 +9084,7 @@ FakeBookMove: // [HGM] book: we jump here to simulate machine moves after book h
       return;
     }
     if(sscanf(message, "choice %s", promoRestrict) == 1 && promoSweep != EmptySquare) {
-      promoSweep = PieceToChar(forwardMostMove&1 ? ToLower(*promoRestrict) : ToUpper(*promoRestrict));
+      promoSweep = CharToPiece(currentMove&1 ? ToLower(*promoRestrict) : ToUpper(*promoRestrict));
       Sweep(0);
       return;
     }