$ git clone -n https://gitee.com/src-opencloudos-rpms/ostree /var/lib/mock/dist-oc8-build-58058-15875/root/chroot_tmpdir/scmroot/ostree
Cloning into '/var/lib/mock/dist-oc8-build-58058-15875/root/chroot_tmpdir/scmroot/ostree'...
$ git fetch origin oc8:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/ostree
 * [new branch]      oc8        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e82c4c4 import ostree-2022.2-8.tl3