$ git clone -n https://gitee.com/opencloudos-stream/bind9-next.git /var/lib/mock/dist-oc9-epol-build-214762-80797/root/chroot_tmpdir/scmroot/bind9-next
Cloning into '/var/lib/mock/dist-oc9-epol-build-214762-80797/root/chroot_tmpdir/scmroot/bind9-next'...
$ git fetch origin c486b50a796afdb03d6a113575473a6b266f58c0:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/bind9-next
 * [new ref]         c486b50a796afdb03d6a113575473a6b266f58c0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c486b50 !2 Rebuilt for loongarch64 Merge pull request !2 from brucezhang/master