$ git clone -n https://gitee.com/src-opencloudos-rpms/os-prober.git /var/lib/mock/dist-oc9-build-59979-16463/root/chroot_tmpdir/scmroot/os-prober
Cloning into '/var/lib/mock/dist-oc9-build-59979-16463/root/chroot_tmpdir/scmroot/os-prober'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/os-prober
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7ebc3c0 import os-prober-1.81-4.tl4