$ git clone -n https://src.fedoraproject.org/rpms/CFR.git /var/lib/mock/f38-build-side-42-init-devel-603289-26218/root/chroot_tmpdir/scmroot/CFR
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-603289-26218/root/chroot_tmpdir/scmroot/CFR'...
$ git fetch origin e2d44ad232d705b6e5838322c44e45e81ae8b469:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/CFR
 * [new ref]         e2d44ad232d705b6e5838322c44e45e81ae8b469 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e2d44ad Unretirement request: https://pagure.io/releng/issue/11347