$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-Ref-Util-XS.git /var/lib/mock/dist-oc9-build-71329-47543/root/chroot_tmpdir/scmroot/perl-Ref-Util-XS
Cloning into '/var/lib/mock/dist-oc9-build-71329-47543/root/chroot_tmpdir/scmroot/perl-Ref-Util-XS'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-Ref-Util-XS
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e4cb677 import perl-Ref-Util-XS-0.117-6.tl4