--ancestry-path returns empty when mono-filtered/main has advanced
past the last forward sync (any monorepo commit causes josh to create
a new filtered SHA not in the subrepo's ancestry). Use git merge-base
to find the last connected point instead.
Also return skip-dirty (not skip) when trees differ but no human
commits found, preventing state from being updated on false skips
which would permanently lose unsynced commits.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
SBPro
b4eaa47ef6