$ git clone -n https://src.fedoraproject.org/rpms/jisksp16-1990-fonts.git /var/lib/mock/f39-build-1673275-40874/root/chroot_tmpdir/scmroot/jisksp16-1990-fonts
Cloning into '/var/lib/mock/f39-build-1673275-40874/root/chroot_tmpdir/scmroot/jisksp16-1990-fonts'...
$ git fetch origin 8b2032d976165cca223c49833a5262c766f4cf46:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jisksp16-1990-fonts
 * [new ref]         8b2032d976165cca223c49833a5262c766f4cf46 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8b2032d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild