$ git clone -n https://src.fedoraproject.org/rpms/json.git /var/lib/mock/f33-build-180202-45147/root/chroot_tmpdir/scmroot/json
Cloning into '/var/lib/mock/f33-build-180202-45147/root/chroot_tmpdir/scmroot/json'...
$ git reset --hard e54b8141055f0146d4f5a7f6bb2db805098acd7a
HEAD is now at e54b814 Fixed FTBFS on Fedora Rawhide.