$ git clone -n https://gitee.com/src-opencloudos-rpms/glib2.git /var/lib/mock/dist-oc9-build-46217-14592/root/chroot_tmpdir/scmroot/glib2
Cloning into '/var/lib/mock/dist-oc9-build-46217-14592/root/chroot_tmpdir/scmroot/glib2'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/glib2
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ca50f8c import glib2-2.72.1-5.tl4