$ git clone -n https://src.fedoraproject.org/rpms/emacs-json-reformat.git /var/lib/mock/f40-build-2435185-60775/root/chroot_tmpdir/scmroot/emacs-json-reformat
Cloning into '/var/lib/mock/f40-build-2435185-60775/root/chroot_tmpdir/scmroot/emacs-json-reformat'...
$ git fetch origin c6f70fc253b7fbdf1d994bf5798789a4a4fa4deb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-json-reformat
 * [new ref]         c6f70fc253b7fbdf1d994bf5798789a4a4fa4deb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c6f70fc Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild