Jean Chalard 729abe6332 Stopgap solution for a crash.
This returns the wrong string, but since it's used for getting the
previous word for bigrams, it only results in slightly worse
suggestions quality.

Bug: 11273655
Change-Id: I6ce5de2f76effc453ca691a654ab6bf17445b9e7
2013-10-22 20:00:09 +09:00
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