$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-XML-SAX-Base.git /var/lib/mock/dist-oc9-build-43958-14591/root/chroot_tmpdir/scmroot/perl-XML-SAX-Base
Cloning into '/var/lib/mock/dist-oc9-build-43958-14591/root/chroot_tmpdir/scmroot/perl-XML-SAX-Base'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-XML-SAX-Base
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4512dd9 import perl-XML-SAX-Base-1.09-3.tl4