$ git clone -n https://src.fedoraproject.org/rpms/pipewalker.git /var/lib/mock/f40-build-2023548-46913/root/chroot_tmpdir/scmroot/pipewalker
Cloning into '/var/lib/mock/f40-build-2023548-46913/root/chroot_tmpdir/scmroot/pipewalker'...
$ git fetch origin 7d637a5f8e09303991ad930d91490d9b883865d4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pipewalker
 * [new ref]         7d637a5f8e09303991ad930d91490d9b883865d4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7d637a5 Update to v0.9.5