$ git clone -n https://gitee.com/opencloudos-stream/perl-Mail-DKIM.git /var/lib/mock/dist-ocs23-build-7730-37/root/chroot_tmpdir/scmroot/perl-Mail-DKIM
Cloning into '/var/lib/mock/dist-ocs23-build-7730-37/root/chroot_tmpdir/scmroot/perl-Mail-DKIM'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/perl-Mail-DKIM
 * [new ref]                    -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ec2ea41 OCS package init