$ git clone -n https://src.fedoraproject.org/rpms/rmlint.git /var/lib/mock/f40-build-2149471-50890/root/chroot_tmpdir/scmroot/rmlint
Cloning into '/var/lib/mock/f40-build-2149471-50890/root/chroot_tmpdir/scmroot/rmlint'...
$ git fetch origin 8cfd539d704de05214705f5cc8ec177d817d9d50:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rmlint
 * [new ref]         8cfd539d704de05214705f5cc8ec177d817d9d50 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8cfd539 Update to 2.10.1