[hardbyte]

After a priority or queue move, the retained source ready row and live destination can have identical attempt timestamps. A ring wrap can make get_job choose the source row, returning the old priority or queue even though the batch operation reports success.

Exclude ready rows with a tombstone matching their full slot, generation and lane identity from the available-job point-read candidates. Keep retained rows available to the running and terminal hydration paths.

This predates 0.6.13 and explains the priority4-versus1 failures seen in #629 and #638 CI. Two public-API regressions wrap child7 to child0, move priority/queue, prove the source is tombstoned, and require the live value. Both fail before the fix and pass on PostgreSQL17/18 after it. The original failing batch-operation test also passes with the forced wrap.

Required fmt, offline all-target/all-feature Clippy (-D warnings), and workspace build pass. Main counterpart is included in #600. No migration.

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[chatgpt-codex-connector]

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-11-06T09:34:47.496388Z	9dcb8c1	PR opened

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