$ git clone -n https://git.cclinux.org/stage/rpms/gmp.git /mnt/compose/mock/dist-circle8-build-113641-74598/root/chroot_tmpdir/scmroot/gmp
Cloning into '/mnt/compose/mock/dist-circle8-build-113641-74598/root/chroot_tmpdir/scmroot/gmp'...
$ git fetch origin 169bb70d71a3e2acb75d4e1a12d3582f0fda1f77:KOJI_FETCH_HEAD
From https://git.cclinux.org/stage/rpms/gmp
 * [new ref]         169bb70d71a3e2acb75d4e1a12d3582f0fda1f77 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 169bb70 import gmp-6.1.2-11.el8