$ git clone -n https://gitee.com/fundawang/samba.git /var/lib/mock/dist-an23-build-295418-65781/root/chroot_tmpdir/scmroot/samba
Cloning into '/var/lib/mock/dist-an23-build-295418-65781/root/chroot_tmpdir/scmroot/samba'...
$ git fetch origin 96e67cc772a07e1d3539f453529d8cab3e5c0b6e:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/samba
 * [new ref]         96e67cc772a07e1d3539f453529d8cab3e5c0b6e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 96e67cc 4.18.6