$ git clone -n https://gitee.com/src-opencloudos-rpms/xerces-c.git /var/lib/mock/dist-oc9-build-53395-14748/root/chroot_tmpdir/scmroot/xerces-c
Cloning into '/var/lib/mock/dist-oc9-build-53395-14748/root/chroot_tmpdir/scmroot/xerces-c'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/xerces-c
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f5333b1 import xerces-c-3.2.3-2.tl4