$ git clone -n https://git.cclinux.org/stage/rpms/grubby.git /mnt/compose/mock/dist-circle8-build-109603-62789/root/chroot_tmpdir/scmroot/grubby
Cloning into '/mnt/compose/mock/dist-circle8-build-109603-62789/root/chroot_tmpdir/scmroot/grubby'...
$ git fetch origin 57afc8179e545b0e87b338b228a59a649bcd7e78:KOJI_FETCH_HEAD
From https://git.cclinux.org/stage/rpms/grubby
 * [new ref]         57afc8179e545b0e87b338b228a59a649bcd7e78 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 57afc81 import grubby-8.40-48.el8