$ git clone -n https://gitee.com/src-opencloudos-rpms/libtevent /var/lib/mock/dist-oc8-build-57019-15199/root/chroot_tmpdir/scmroot/libtevent
Cloning into '/var/lib/mock/dist-oc8-build-57019-15199/root/chroot_tmpdir/scmroot/libtevent'...
$ git fetch origin oc8:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libtevent
 * [new branch]      oc8        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6480d2e import libtevent-0.13.0-1.tl3