Hopefully the version that's compiling right now will fix that (Ran SSP, eating / block breaking has been fixed). I honestly have no idea what could cause such a bug. You're the first to report it :P
Edit: Re-making the compiled jar instead of overlapping the newest updates seems to have fixed it. Uploading / creating virus scans now.
The eating bug was a glitch when you started a creative world and went into survival (or at least that's all I can gather).