server/lib/update-check.js's execGit() and two test helpers
(lanes-cli.test.js, update-check.test.js) shelled out to git with an
explicit `cwd` but no `env` override. A parent git hook process (this
repo's own .husky/pre-commit, which runs `npm run test:server`) sets
GIT_DIR/GIT_INDEX_FILE in its own environment; those leak to every
child process and take precedence over `cwd` for repo discovery, so
every git command these tests ran against their throwaway tmp repos
was silently redirected at the real repo running the hook instead —
reproduced firsthand as four foreign "init"/"fixture" commits
overwriting a worktree branch mid pre-commit run. Fixes it the same
way server/lib/worktree.js already documented and did for its own git
calls: strip the GIT_* vars before exec.
nntrivi2001
dfea1a99d6