$ git clone -n https://src.fedoraproject.org/rpms/freetennis.git /var/lib/mock/f42-build-865788-173520/root/chroot_tmpdir/scmroot/freetennis
Cloning into '/var/lib/mock/f42-build-865788-173520/root/chroot_tmpdir/scmroot/freetennis'...
$ git fetch origin f0b7c83f78812b4f5862453ec6559893bbc669d5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/freetennis
 * [new ref]         f0b7c83f78812b4f5862453ec6559893bbc669d5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f0b7c83 OCaml 5.3.0 rebuild for Fedora 42