$ git clone -n https://src.fedoraproject.org/rpms/gfs-didot-classic-fonts.git /var/lib/mock/f39-build-1749649-41458/root/chroot_tmpdir/scmroot/gfs-didot-classic-fonts
Cloning into '/var/lib/mock/f39-build-1749649-41458/root/chroot_tmpdir/scmroot/gfs-didot-classic-fonts'...
$ git fetch origin 2b75a85be8e6fba1705c4b5fe8ca52b9ca229f1e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gfs-didot-classic-fonts
 * [new ref]         2b75a85be8e6fba1705c4b5fe8ca52b9ca229f1e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2b75a85 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild