aquilescanta 98c5b2b8d0 Treat empty stss boxes as absent
ISSUE: #1681

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=128071668
2016-07-22 22:41:35 +01:00
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2016-07-22 22:41:35 +01:00