$ git clone -n https://gitee.com/src-opencloudos-rpms/leapp-repository.git /var/lib/mock/dist-oc8-build-124229-73803/root/chroot_tmpdir/scmroot/leapp-repository
Cloning into '/var/lib/mock/dist-oc8-build-124229-73803/root/chroot_tmpdir/scmroot/leapp-repository'...
$ git fetch origin oc8:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/leapp-repository
 * [new branch]      oc8        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6615c71 fix bugs in x86_64:there is no /boot/efi/EFI/opencloudos/grubenv in x86_64