5409c6fcc5
If manager_loop() fails, we would print an error message, but then actually ignore the error in main(), and potentially execute the shutdown binary. I'm not sure how likely this is to happen in practice, but it seems sloppy. So let's do the cleanup, but actually freeze() if manager_loop() returned an error. invoke_main_loop() is refactored to return the manager objective. This way we don't need to pass a separate parameter to specify whether we are reexecuting. Subsequent patch will make further use of the returned objective.
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