Fix parsing of O-O and O-O-O after FEN pasting in FRC

Because the initial rights were not set in the FEN reader, the
initial rights of the previous game remained in force, so that the
parser did not understand OO-castling (although it would allow KxR
castling).

diff --git a/backend.c b/backend.c
index 7a8aee2..3480a11 100644 (file)
--- a/backend.c
+++ b/backend.c
@@ -14220,6 +14220,8 @@ ParseFEN(board, blackPlaysFirst, fen)
               }
         }
       }
+      for(i=0; i<nrCastlingRights; i++)
+        if(board[CASTLING][i] != NoRights) initialRights[i] = board[CASTLING][i];
     if (appData.debugMode) {
         fprintf(debugFP, "FEN castling rights:");
         for(i=0; i<nrCastlingRights; i++)