$ git clone -n https://src.fedoraproject.org/rpms/emacs-json-mode.git /var/lib/mock/f39-build-1577510-37968/root/chroot_tmpdir/scmroot/emacs-json-mode
Cloning into '/var/lib/mock/f39-build-1577510-37968/root/chroot_tmpdir/scmroot/emacs-json-mode'...
$ git fetch origin 9860922b401c69b100061a9e93965f032b4290bf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-json-mode
 * [new ref]         9860922b401c69b100061a9e93965f032b4290bf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9860922 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild