rackerlabs/repose — pull request #586 by usnavi (2013-07-08 15:26:45+00:00)
Title: B-51215 - Repose Support Story - Translation race condition fix 

Marshalling the request headers in translation was not done in a thread-safe fashion. Potentially 2 requests could be marshalled at the same time with
the same marshalling object. By synchronizing this call, this fixes the issue.