$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-Getopt-Long.git /var/lib/mock/dist-oc9-build-43632-14591/root/chroot_tmpdir/scmroot/perl-Getopt-Long
Cloning into '/var/lib/mock/dist-oc9-build-43632-14591/root/chroot_tmpdir/scmroot/perl-Getopt-Long'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-Getopt-Long
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f11f9d5 import perl-Getopt-Long-2.52-3.tl4