$ git clone -n https://gitee.com/src-opencloudos-rpms/libepubgen.git /var/lib/mock/dist-oc9-build-70317-47418/root/chroot_tmpdir/scmroot/libepubgen
Cloning into '/var/lib/mock/dist-oc9-build-70317-47418/root/chroot_tmpdir/scmroot/libepubgen'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libepubgen
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ff66d21 import libepubgen-0.1.1-6.tl4