$ git clone -n https://src.fedoraproject.org/rpms/haruna.git /var/lib/mock/f39-build-1776574-41525/root/chroot_tmpdir/scmroot/haruna
Cloning into '/var/lib/mock/f39-build-1776574-41525/root/chroot_tmpdir/scmroot/haruna'...
$ git fetch origin a021ab8b77f5dd16a1be26d08edfd3e6e956ab7d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/haruna
 * [new ref]         a021ab8b77f5dd16a1be26d08edfd3e6e956ab7d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a021ab8 version 0.12.2