$ git clone -n https://src.fedoraproject.org/rpms/emacs-json-mode.git /var/lib/mock/f40-build-2277363-55221/root/chroot_tmpdir/scmroot/emacs-json-mode
Cloning into '/var/lib/mock/f40-build-2277363-55221/root/chroot_tmpdir/scmroot/emacs-json-mode'...
$ git fetch origin 8c960b1336913a416da9e2454a11b2f337426dce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-json-mode
 * [new ref]         8c960b1336913a416da9e2454a11b2f337426dce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8c960b1 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild