$ git clone -n https://gitee.com/src-opencloudos-rpms/ipxe.git /var/lib/mock/dist-oc9-build-70106-47388/root/chroot_tmpdir/scmroot/ipxe
Cloning into '/var/lib/mock/dist-oc9-build-70106-47388/root/chroot_tmpdir/scmroot/ipxe'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/ipxe
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7070a3d import ipxe-20220210-5.tl4