Changes touching this path

• sweep 1 fix-up over #1826, #1837 and #1839: a live change only a superseded head reaches is listed in the fork view, in a third section of its own, rather than in no section at all. LogGraph::retain_heads leaves such a change with an empty reachable_from, and history() partitioned the fork on exactly one head and more than one, so after a move --onto the ancestor the old tip alone reaches was printed nowhere - reproduced first through the spawned binary with two live lines (0 passed, 1 failed), the fork and the non-empty superseded head both holding as controls. GraphHistory gains unreached, the renderer prints it under behind a superseded tip after the shared ancestry, drawn_rows leads with it because such a change can only be a child of a lane or shared row, the path filter, retain_versions and all_rows walk it, and both machine shapes carry the row with no new column. HEAD on an untracked position with no working change now counts the heads Liveness::is_superseded rejects and answers the sole counted head by name, because Position::anchor answers the first graph head, which can be the superseded one; measured at the other two sites the ticket named, propose already reads is_live and IntegrationPreview deliberately counts the whole partition with retire for the superseded ones, so the liveness doc now points at the callers of the predicate rather than listing two readers. the move --onto usage line gets its space back; refit_shape spells its path columns through treepath::store_key with a backslash pin, and the #2033 census records the tree-path axis it is blind to by design; the shallow clause has one spelling, workspace::parents_not_held, read by the notice and the push refusal, with the pin the suite lacked; carried is carried_count, Reanchored.change is change_id, the squash and absorb op-log lines say re-anchored, frontier_beyond_the_host is private, the one-flag-member sentences drop one, ADR 0089 names both readers of .loot/shallow and both frontier spellings, and the one raw exit ADR 0089 rests on is held to one by a census in tutorial.rs. own > 0 for the move --onto stale head is pinned off the loot heads row. red first, six mutations in one round over disjoint pins: the unreached filter blinded, drawn_rows reordered, the HEAD filter blinded, store_key undone and a second raw exit added redden five pins with the sync shallow control green (1 passed, 5 failed) and the spawned fork pin (2 passed, 1 failed); the noun-verb swap survived tests/shallow (10 passed, 0 failed), which is why the clause has a pin now (0 passed, 1 failed under the swap). ADR 0066 keeps its gated 28 and points at the gate instead of at tickets. no migration, no wire or format byte moves, and no forge or relay byte moves, so this owes no deploy. the workspace suite is green (3895 passed over 122 binaries, 7 ignored) (#2046) 0b55a20f · dbf3dbe6…

Renames are not followed. loot's tree maps a path to an address, so a rename is a delete and an add. This list is the history of the name, not of the bytes.