$ git clone -n https://gitee.com/linguanren/oceanbase-ce.git /var/lib/mock/dist-an8.9-build-385583-71957/root/chroot_tmpdir/scmroot/oceanbase-ce
Cloning into '/var/lib/mock/dist-an8.9-build-385583-71957/root/chroot_tmpdir/scmroot/oceanbase-ce'...
$ git fetch origin a39bb7aeffdb618f1f441034c9b454197ffd8edb:KOJI_FETCH_HEAD
From https://gitee.com/linguanren/oceanbase-ce
 * [new ref]         a39bb7aeffdb618f1f441034c9b454197ffd8edb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a39bb7a reset gcc