$ git clone -n https://git.cclinux.org/stage/rpms/rpm.git /mnt/compose/mock/dist-circle8-build-113366-73358/root/chroot_tmpdir/scmroot/rpm
Cloning into '/mnt/compose/mock/dist-circle8-build-113366-73358/root/chroot_tmpdir/scmroot/rpm'...
$ git fetch origin 28f21386a89006095420382a4ec51690440556c1:KOJI_FETCH_HEAD
From https://git.cclinux.org/stage/rpms/rpm
 * [new ref]         28f21386a89006095420382a4ec51690440556c1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 28f2138 import rpm-4.14.3-31.el8