[moses-smt/mosesdecoder] 6d3a2b: fixed a segfault

[GitHub <no...@gi...>]

  Branch: refs/heads/damt_phrase
  Home:   https://github.com/moses-smt/mosesdecoder
  Commit: 6d3a2bc71fdf50bc3976d85d4d25de70c8b30460
      https://github.com/moses-smt/mosesdecoder/commit/6d3a2bc71fdf50bc3976d85d4d25de70c8b30460
  Author: Ales Tamchyna <a.t...@gm...>
  Date:   2012-11-16 (Fri, 16 Nov 2012)

  Changed paths:
    M moses/src/TranslationOptionCollection.cpp

  Log Message:
  -----------
  fixed a segfault