$ git clone -n https://gitee.com/jackwl/opengnb-build.git /var/lib/mock/dist-an23-build-297294-65824/root/chroot_tmpdir/scmroot/opengnb-build
Cloning into '/var/lib/mock/dist-an23-build-297294-65824/root/chroot_tmpdir/scmroot/opengnb-build'...
$ git fetch origin 4c55dbeacbd3f33d10fa089adeda42fc722a906a:KOJI_FETCH_HEAD
From https://gitee.com/jackwl/opengnb-build
 * [new ref]         4c55dbeacbd3f33d10fa089adeda42fc722a906a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4c55dbe update opengnb.spec.