$ git clone -n https://src.fedoraproject.org/rpms/rejson.git /var/lib/mock/f40-build-790028-136232/root/chroot_tmpdir/scmroot/rejson
Cloning into '/var/lib/mock/f40-build-790028-136232/root/chroot_tmpdir/scmroot/rejson'...
$ git fetch origin 9d7820670be235ac544bf4cae86d518dfa28f0cf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rejson
 * [new ref]         9d7820670be235ac544bf4cae86d518dfa28f0cf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9d78206 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild