Some errors are getting shown in multi-deck solitaire

[ichabod801]

When guessing moves in multi-deck games (specifically Forty Thieves, but presumably this is a MultiSolitaire problem) it is displaying errors for specific moves, even though that move or another move is eventually made. These errors should be suppressed, and there would be a lot more of them if they weren't all.

[ichabod801]

Note that this was with Solitaire Construction Kit using Forty Thieves as a base game, but I don't think that's the issue.

[ichabod801]

One error that was shown was the 'not available to be freed' error. I think there was a different error, but it was also a 'not available' error.

[ichabod801]

There is no other 'not available' error. So this is a free cell error, if anything. But there are no two deck games that use free cells. So I can't test it. Drop it to Dodona in case it comes up with a later game, or I have time to make a game to test it.