NServiceBus/NServiceBus — pull request #1248 by michaelnoonan (2013-06-20 04:03:48+00:00)
Title: Only update CorrId header if it isn't already populated

A problem exists in 4.0.0-unstable3157-3167 where the CorrId header is already in the Headers dictionary when calling Saga.RequestTimeout. Example:

RequestTimeout(TimeSpan.FromHours(1));