$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-DBI.git /var/lib/mock/dist-oc8-build-254486-84409/root/chroot_tmpdir/scmroot/perl-DBI
Cloning into '/var/lib/mock/dist-oc8-build-254486-84409/root/chroot_tmpdir/scmroot/perl-DBI'...
$ git fetch origin 62e966b79c77332bd3e4ea96e8c2b69d6a0dfb0e:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-DBI
 * [new ref]         62e966b79c77332bd3e4ea96e8c2b69d6a0dfb0e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 62e966b import perl-DBI-1.641-4.tl3