$ git clone -n https://gitee.com/opencloudos-stream/boinc-client.git /var/lib/mock/dist-ocs23-epol9-build-161392-10144/root/chroot_tmpdir/scmroot/boinc-client
Cloning into '/var/lib/mock/dist-ocs23-epol9-build-161392-10144/root/chroot_tmpdir/scmroot/boinc-client'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/boinc-client
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a0aecb4 update