$ git clone -n https://gitee.com/src-opencloudos-rpms/samba.git /var/lib/mock/dist-oc9-build-249374-83831/root/chroot_tmpdir/scmroot/samba
Cloning into '/var/lib/mock/dist-oc9-build-249374-83831/root/chroot_tmpdir/scmroot/samba'...
$ git fetch origin 68382838ce99edb0be62aa327f81e7bb94fa1406:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/samba
 * [new ref]         68382838ce99edb0be62aa327f81e7bb94fa1406 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6838283 import samba-4.19.4-14.tl4