A new defect has been detected and assigned to renctan in Coverity Connect.
http://coverity.mongodb.com//sourcebrowser.htm?projectId=10001#mergedDefectId=48577
The defect was flagged by checker DEADCODE in
file /src/mongo/s/d_migrate.cpp
function mongo::MigrateStatus::_go(mongo::OperationContext *, const std::basic_string<char, std::char_traits<char>, std::allocator<char>>&, mongo::BSONObj, mongo::BSONObj, mongo::BSONObj, const std::basic_string<char, std::char_traits<char>, std::allocator<char>>&, const mongo::OID &, const mongo::WriteConcernOptions &)
and this ticket was created by renctan