Fix for bug in cachedInCheckValue when doing/undoing turnskips #350
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This PR fixes a bug in the
ForceSkipTurn(),TrySkipTurn(), andUndoSkipTurn()methods. Currently if you use any of these three methods to change the turn and then on that same turn useIsInCheck(), you will always get back false.I did two full runs of the tests, one where after every board setup or move I added a
ForceSkipTurn()followed by anUndoSkipTurn(), and one where I updated the position setup fens to flip the turn order and then added aForceSkipTurn()immediately after. In both cases all the tests still passed.I did see a comment on the
MakeNullMove()method in theChess.Boardclass about being in check potentially being an issue, but I didn't see any (other) code that seemed like that would be an issue (and also didn't notice any issues with this in the tests).