$ git clone -n https://src.fedoraproject.org/rpms/kf5-akonadi-server.git /var/lib/mock/f39-build-1704170-41218/root/chroot_tmpdir/scmroot/kf5-akonadi-server
Cloning into '/var/lib/mock/f39-build-1704170-41218/root/chroot_tmpdir/scmroot/kf5-akonadi-server'...
$ git fetch origin 23b00a351abed46a121d571537d20d5ae8065faf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-akonadi-server
 * [new ref]         23b00a351abed46a121d571537d20d5ae8065faf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 23b00a3 23.08.3