Unrecoverable game from closed window about nethack-cocoa HOT 3 CLOSED

I have this problem too - Mac crashed in the middle of a game.

Was able to use the terminal port to recover
karl:~/Library/NetHackCocoa $ /usr/games/bin/recover -d ~/Library/NetHackCocoa 
501Karl
recovered "501Karl" to save/501Karl

I noticed that the App saves its files like 501Karl.Z, so renamed the save file 
to that.

Now when I start the message I get is "Unable to uncompress save/501Karl".

Deleting 501Karl.0 had no effect.

Any ideas how I can convert the terminal-generated save file to work with the 
app?

As of 0.3.5 the game will prompt to recover files following a crash.

I am only able to get version 0.3.3 from the Mac App Store, and I can only see 
0.3.4 for download in this wiki. Is there a plan for a new release any time 
soon?  My nice well-developed character just got destroyed due to a similar bug 
(I didn't close the window, but the app crashed and the game was 
unrecoverable). :(