$ git clone -n https://gitee.com/opencloudos-stream/svt-av1.git /var/lib/mock/dist-ocs23-loongarch64-build-144658-9765/root/chroot_tmpdir/scmroot/svt-av1
Cloning into '/var/lib/mock/dist-ocs23-loongarch64-build-144658-9765/root/chroot_tmpdir/scmroot/svt-av1'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/svt-av1
 * [new ref]         HEAD       -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5515fac !2 upgrade to 2.0.0 Merge pull request !2 from cunshunxia/master