$ git clone -n https://gitee.com/src-opencloudos-rpms/dav1d.git /var/lib/mock/dist-oc9-build-52970-14748/root/chroot_tmpdir/scmroot/dav1d
Cloning into '/var/lib/mock/dist-oc9-build-52970-14748/root/chroot_tmpdir/scmroot/dav1d'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/dav1d
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cf2e539 import dav1d-1.1.0-2.tl4