$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-DBI.git /var/lib/mock/dist-oc9-build-247966-83640/root/chroot_tmpdir/scmroot/perl-DBI
Cloning into '/var/lib/mock/dist-oc9-build-247966-83640/root/chroot_tmpdir/scmroot/perl-DBI'...
$ git fetch origin f97e12026629d957d84733a0a7ee30cdfb9c7ff4:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-DBI
 * [new ref]         f97e12026629d957d84733a0a7ee30cdfb9c7ff4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f97e120 import perl-DBI-1.650-2.tl4