$ git clone -n https://gitee.com/fundawang/samba.git /var/lib/mock/dist-an23-build-315223-67535/root/chroot_tmpdir/scmroot/samba
Cloning into '/var/lib/mock/dist-an23-build-315223-67535/root/chroot_tmpdir/scmroot/samba'...
$ git fetch origin f9cd948a867fa736db01cfa2c76d1edd80e8bbf1:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/samba
 * [new ref]         f9cd948a867fa736db01cfa2c76d1edd80e8bbf1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f9cd948 4.18.8