$ git clone -n https://src.fedoraproject.org/rpms/R-systemfonts.git /var/lib/mock/f41-build-821965-152654/root/chroot_tmpdir/scmroot/R-systemfonts
Cloning into '/var/lib/mock/f41-build-821965-152654/root/chroot_tmpdir/scmroot/R-systemfonts'...
$ git fetch origin d9d858e97458df09d6235523bd84250d83c5f97f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-systemfonts
 * [new ref]         d9d858e97458df09d6235523bd84250d83c5f97f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d9d858e Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild