$ git clone -n https://gitee.com/src-opencloudos-rpms/file /var/lib/mock/dist-oc8-build-57906-15781/root/chroot_tmpdir/scmroot/file
Cloning into '/var/lib/mock/dist-oc8-build-57906-15781/root/chroot_tmpdir/scmroot/file'...
$ git fetch origin oc8:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/file
 * [new branch]      oc8        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4db4ef8 import file-5.33-25.tl3