Code review comment for lp:~pbeaman/akiban-persistit/fix-1058650-ISE-out-of-order-MVV

Thanks for the good find. I think I fixed that by resetting the spareValue encoded size to the pruned size. I also discovered a break statement inside of the new retry loop that was intended to break the outer loop. Added a break label, which is kind of ugly syntax. Tell me if this offends and you see a better alternative.