$ git clone -n https://gitee.com/src-opencloudos-rpms/libarchive.git /var/lib/mock/dist-oc9-build-48850-14595/root/chroot_tmpdir/scmroot/libarchive
Cloning into '/var/lib/mock/dist-oc9-build-48850-14595/root/chroot_tmpdir/scmroot/libarchive'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libarchive
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at da8bb16 import libarchive-3.6.1-3.tl4