$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-DBD-MariaDB.git /var/lib/mock/dist-oc9-build-132025-78810/root/chroot_tmpdir/scmroot/perl-DBD-MariaDB
Cloning into '/var/lib/mock/dist-oc9-build-132025-78810/root/chroot_tmpdir/scmroot/perl-DBD-MariaDB'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-DBD-MariaDB
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d230df4 import perl-DBD-MariaDB-1.22-8.tl4