$ git clone -n https://src.fedoraproject.org/rpms/lilypond-doc.git /var/lib/mock/f39-build-1466054-33641/root/chroot_tmpdir/scmroot/lilypond-doc
Cloning into '/var/lib/mock/f39-build-1466054-33641/root/chroot_tmpdir/scmroot/lilypond-doc'...
$ git fetch origin 9b300d4ae990f8320e564b3d6e38ae54e953affb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lilypond-doc
 * [new ref]         9b300d4ae990f8320e564b3d6e38ae54e953affb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9b300d4 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild