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fix(signals): a lane reveals whole beside its parent's landing (#4677) (#4687)

* fix(signals): a lane reveals whole beside its parent's landing (#4677)

An async memo over isPending(x) showed 'pending: true' beside an isPending(x) binding still false: the parent landing at the lane's seam voided the binding's lane run while the memo's run showed. The voided runs now show with the lane's (F-6, F-1); the landing's re-derivation follows next round. The second order from the issue (a landing flush's own run shown beside held runs parked with a re-derivation, F-1/F-7) is pinned it.fails.

Co-authored-by: tembo[bot] <208362400+tembo-io[bot]@users.noreply.github.com>

* chore(size): re-record lane rows after #4682 and #4677

Five rows, +111 B minified each from #4677 and +7 B from #4682 (not re-recorded yet): signals + isPending/latest, app hydrating + every store family, the live page (a frozen floor, Size-Exception in the PR body), the compiled live page and live + router. Measured locally over next @ 5208944 with the in-repo compiler build; caps are measured brotli + 10 B.

Co-authored-by: tembo[bot] <208362400+tembo-io[bot]@users.noreply.github.com>

* fix(signals): hold a landing's plain runs for its re-derivation (#4677)

Case 2 of #4677: when the lane lands first, the write's landing re-derives the badge memo onto a new flight and holds its runs for it (U-5), but that flush's runs of effects deriving plainly from the landing still ran, so details showed Item 1 beside id 0 (F-1, F-7). The landing walks the effects that derive plainly from what it commits (stopping at verdict readers and lane runs, which show now: F-6, D-25, #4398) into a round-scoped set, and verdict.ts attachWaits re-queues their runs to the next round, with the landing's held runs. The set is dropped at the end of the round, so nothing outlives the flush.

Co-authored-by: tembo[bot] <208362400+tembo-io[bot]@users.noreply.github.com>

* chore(size): re-record lane rows for #4677 case... (continued)

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