$ git clone -n https://gitee.com/alpha-wang/rabbitmq-server_1.git /var/lib/mock/dist-an8-epao-build-420885-72902/root/chroot_tmpdir/scmroot/rabbitmq-server_1
Cloning into '/var/lib/mock/dist-an8-epao-build-420885-72902/root/chroot_tmpdir/scmroot/rabbitmq-server_1'...
$ git fetch origin fdeb8efc0e8c69332c43fed6350b8d6cc4e51eb0:KOJI_FETCH_HEAD
From https://gitee.com/alpha-wang/rabbitmq-server_1
 * [new ref]         fdeb8efc0e8c69332c43fed6350b8d6cc4e51eb0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fdeb8ef init to 3.8.3