Branch status resolves an open PR across the whole fork network first, so a
merged fork PR can never hide an open upstream PR for the same head. Only when
no target has an open PR does the branch's newest closed/merged PR come back,
as history.
The panel shows that history as a compact note and offers creating the next PR
below it, instead of either sticking on a terminal PR or going blank after a
merge. Terminal associations stay persisted for reload continuity but are never
treated as authority: they revalidate on the discovery cadence and on focus.
History is looked up only for the branch's own remote and name, and remembered
per repo+branch, so the extra lookup cannot exhaust the route's resolve budget.
The checks summary and merge-permission lookup are skipped for a closed or
merged PR, where neither is actionable.
Add store persist/hydrate regressions for terminal branch associations
and a server test that a complete empty open list does not query closed
PRs. Inline the open-only matcher state so the next repo target can win.
Co-authored-by: serkraser <serkraser@gmail.com>
Branch PR status now resolves open PRs only, revalidates closed/merged
associations on a discovery cadence, and clears authoritative empty
results so the panel can self-heal without a manual refresh.
Co-authored-by: Serhii Dziupin <makeittech@users.noreply.github.com>