$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-DBI.git /var/lib/mock/dist-oc8-build-256320-84573/root/chroot_tmpdir/scmroot/perl-DBI
Cloning into '/var/lib/mock/dist-oc8-build-256320-84573/root/chroot_tmpdir/scmroot/perl-DBI'...
$ git fetch origin c48a4fdb8c0c01f676ed27ae884ad6b245e8bcf5:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-DBI
 * [new ref]         c48a4fdb8c0c01f676ed27ae884ad6b245e8bcf5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c48a4fd import perl-DBI-1.641-5.tl3