$ git clone -n https://gitee.com/src-anolis-os/ndisc6.git /var/lib/mock/dist-an23-build-498495-74683/root/chroot_tmpdir/scmroot/ndisc6
Cloning into '/var/lib/mock/dist-an23-build-498495-74683/root/chroot_tmpdir/scmroot/ndisc6'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/ndisc6
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f896fe8 Init upstream from 1.0.8