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setup() now runs an ALTER that a read-only database refuses, so one created before the column could no longer be opened at all. Setup treats that as "no column" and the delta query selects '' instead, which is what those rows read back as anyway. Also narrow the documented replay order to what it covers (task writes; writes stored without a path sort first by task id), give the conformance suite a valid UUID for its "sorts last" task id, and cover Send fan-out in the parallel-order tests.