$ git clone -n https://src.fedoraproject.org/rpms/gnu-free-fonts.git /var/lib/mock/f39-build-1730532-41249/root/chroot_tmpdir/scmroot/gnu-free-fonts
Cloning into '/var/lib/mock/f39-build-1730532-41249/root/chroot_tmpdir/scmroot/gnu-free-fonts'...
$ git fetch origin 5abb5956474150f7cc117a012716d630d1e905a8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnu-free-fonts
 * [new ref]         5abb5956474150f7cc117a012716d630d1e905a8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5abb595 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild