What does FR 2.2.2 fix?

[A.L.M.Buxey at lboro.ac.uk]

Hi,

>   If everyone's in favor, I'll release 2.2.2 on Monday.

hold request


now its monday AM and the load has gone back to higher levels 
the server is freaking out and freezing witht he last message in
the log being


Mon Oct  7 07:50:28 2013 : Error: [event.c:2318] Internal sanity check failed


(thats it...no other output - the server needs a restart, it doesnt process 
anything else once it hits this error)

alan