$ git clone -n https://gitee.com/src-opencloudos-rpms/leapp.git /var/lib/mock/dist-oc8-build-124201-73773/root/chroot_tmpdir/scmroot/leapp
Cloning into '/var/lib/mock/dist-oc8-build-124201-73773/root/chroot_tmpdir/scmroot/leapp'...
$ git fetch origin oc8:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/leapp
 * [new branch]      oc8        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1c62d6a rebuild for oc8