$ git clone -n https://gitee.com/fundawang/rabbitmq-server.git /var/lib/mock/dist-an23-epao-build-353393-71023/root/chroot_tmpdir/scmroot/rabbitmq-server
Cloning into '/var/lib/mock/dist-an23-epao-build-353393-71023/root/chroot_tmpdir/scmroot/rabbitmq-server'...
$ git fetch origin ff8d42718312c4b9a7c72f5f4ae88b3fc6f73bce:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/rabbitmq-server
 * [new ref]         ff8d42718312c4b9a7c72f5f4ae88b3fc6f73bce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ff8d427 3.12.12