$ git clone -n https://src.fedoraproject.org/rpms/openttd.git /var/lib/mock/f40-build-2617998-64475/root/chroot_tmpdir/scmroot/openttd
Cloning into '/var/lib/mock/f40-build-2617998-64475/root/chroot_tmpdir/scmroot/openttd'...
$ git fetch origin ba9df41ec9ad54ba98f338f66890d37dc4a9f396:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openttd
 * [new ref]         ba9df41ec9ad54ba98f338f66890d37dc4a9f396 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba9df41 Rebuild for ICU 74