$ git clone -n https://src.fedoraproject.org/rpms/brltty.git /var/lib/mock/f41-build-810966-147015/root/chroot_tmpdir/scmroot/brltty
Cloning into '/var/lib/mock/f41-build-810966-147015/root/chroot_tmpdir/scmroot/brltty'...
$ git fetch origin b4ac46c0b069eab70c33bbbf2aab9e5345fca876:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/brltty
 * [new ref]         b4ac46c0b069eab70c33bbbf2aab9e5345fca876 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b4ac46c OCaml 5.2.0 for Fedora 41