A lane whose landing finds no preflight receipt naming its head refuses the whole build step (land.go landPush, a plain refusal), so every other lane stops while one lane waits for its full check, and nothing shows when that wait began; ruling DR6d-2 (the product thinker, 2026-10-02) says the other lanes carry on, the lane waits for its receipt like the merge wait (contend, not refuse), and the status shows 'waiting for its full check (since HH:MM)'.

A lane whose landing finds no preflight receipt naming its head refuses the whole build step (land.go landPush, a plain refusal), so every other lane stops while one lane waits for its full check, and nothing shows when that wait began; ruling DR6d-2 (the product thinker, 2026-10-02) says the other lanes carry on, the lane waits for its receipt like the merge wait (contend, not refuse), and the status shows 'waiting for its full check (since HH:MM)'.

Grounds

• pursued: we expect one lane without its receipt to leave the other lanes moving with the wait named beside the move and a since-time that stays fixed across calls (TestALaneWithoutItsFullCheckWaitsWhileTheOthersCarryOn); shown wrong if the step stops every lane or the since-time moves