ENG-19226: As part of the Junit Singleton Isolation branch, an assert was added to verify that Shutdown (which has it's own singletons) was never called from ServerLocalThread. However, some Junit tests do call it which means that for those tests, the Shutdown Singletons need to be reinitialized before Shutdown completes.
ENG-19226:
As part of the Junit Singleton Isolation branch, an assert was added to verify that Shutdown (which has it's own singletons) was never called from ServerLocalThread. However, some Junit tests do call it which means that for those tests, the Shutdown Singletons need to be reinitialized before Shutdown completes.

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