Sourcing the wrapper sources lib.sh, which writes $WORKSPACE_ROOT/.mam/shim/
herdr; without WORKSPACE_ROOT that is the checkout. The new N2 wait-rc test
now runs with its tmp dir as WORKSPACE_ROOT, so the N2 tests leave the
checkout untouched. (The existing C tests in this file still write the
checkout's .mam/shim/herdr, as at 56d0bfd - not changed here.)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HCGpJXhSZasJLU38ksDghe