$ git clone -n https://gitee.com/linguanren/oceanbase.git /var/lib/mock/dist-an8.9-build-373451-71163/root/chroot_tmpdir/scmroot/oceanbase
Cloning into '/var/lib/mock/dist-an8.9-build-373451-71163/root/chroot_tmpdir/scmroot/oceanbase'...
$ git fetch origin cb332ac12d6941dfd476fafddd15cc15d1667a84:KOJI_FETCH_HEAD
From https://gitee.com/linguanren/oceanbase
 * [new ref]         cb332ac12d6941dfd476fafddd15cc15d1667a84 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cb332ac add README