$ git clone -n https://src.fedoraproject.org/rpms/erlang-riaknostic.git /var/lib/mock/f39-build-1598362-38477/root/chroot_tmpdir/scmroot/erlang-riaknostic
Cloning into '/var/lib/mock/f39-build-1598362-38477/root/chroot_tmpdir/scmroot/erlang-riaknostic'...
$ git fetch origin ceb09c1c67c1e96ed01feb6c7bda1b835a840c82:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/erlang-riaknostic
 * [new ref]         ceb09c1c67c1e96ed01feb6c7bda1b835a840c82 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ceb09c1 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild