$ git clone -n https://gitee.com/alpha-wang/rabbitmq-server.git /var/lib/mock/dist-an8.9-build-417155-72835/root/chroot_tmpdir/scmroot/rabbitmq-server
Cloning into '/var/lib/mock/dist-an8.9-build-417155-72835/root/chroot_tmpdir/scmroot/rabbitmq-server'...
$ git fetch origin 71c8cb936f8fbe4444ef4af0772ea3d2508a3dbc:KOJI_FETCH_HEAD
From https://gitee.com/alpha-wang/rabbitmq-server
 * [new ref]         71c8cb936f8fbe4444ef4af0772ea3d2508a3dbc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 71c8cb9 update to rabbitmq-server-3.8.3-1.el8.src.rpm