$ git clone -n https://src.fedoraproject.org/rpms/json-c.git /var/lib/mock/f40-build-786652-134487/root/chroot_tmpdir/scmroot/json-c
Cloning into '/var/lib/mock/f40-build-786652-134487/root/chroot_tmpdir/scmroot/json-c'...
$ git fetch origin 356701fcd0edb8a3dea44b5e0cedb2abf90f0a80:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/json-c
 * [new ref]         356701fcd0edb8a3dea44b5e0cedb2abf90f0a80 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 356701f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild