Data-loss bug: rsync --delete during a rebase dropped RedBear-added files that
carry no __redox__ token (a Redox Wayland-crash wrapper .sh, a utmp compat
header, a generated D-Bus interface) because the capture was grep-on-marker
only. The engine now, for EVERY vendored rebase, fetches pristine(Vold) and
carries forward every committed file absent from Vold (content-agnostic, matched
by path) — so RedBear additions survive. If Vold cannot be fetched it rejects
(manual) rather than produce a lossy tree. New tests E20 (non-marker added file
preserved) + Vold fixtures for the rebase cases. 41 tests green.
vasilito
9ec00ca793