$ git clone -n https://src.fedoraproject.org/rpms/certbot.git /var/lib/mock/f41-build-1290427-23344/root/chroot_tmpdir/scmroot/certbot
Cloning into '/var/lib/mock/f41-build-1290427-23344/root/chroot_tmpdir/scmroot/certbot'...
$ git fetch origin a330698e601c41238492218ee47b95dcc9111a2c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/certbot
 * [new ref]         a330698e601c41238492218ee47b95dcc9111a2c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a330698 update to 2.11.0