Max Sherman a97f665629 Guard against small window where sending a message can crash the packager
Reviewed By: davidaurelio

Differential Revision: D4541015

fbshipit-source-id: 025039c593f7f0f6e40f5fd38ccc07e50f7d04b0
2017-02-10 09:30:08 -08:00
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2017-02-03 06:58:35 -08:00