cms-sw/cmssw — pull request #1034 by wmtan (2013-10-09 12:40:40+00:00)
Title: Don't update global registries in secondary source

The parameter set and parentage registries are each globals across all threads. This pull request ensures that a secondary input source will not update either of them. This is needed for thread safety.
This has been successfully tested with the full relval matrix.