Enriched Genesis tests to confirm all Genesis components are disabled when GSM transitions to CaughtUp

[nfrisby]

Today's test suite doesn't test this, and so didn't catch Issue #1490. It's straight-forward enough that I'm surprised code review didn't catch it. Regardless, it's tech debt to not cover that with tests.

Moreover: for GDD, LoP, LoE, etc the logic for disabling and re-enabling is trivial, but for CSJ the re-enable logic might not be trivial. There is at least one trivial option, but it's somewhat wasteful. So some tests should exercise this.