$ git clone -n https://src.fedoraproject.org/rpms/rubygem-json.git /var/lib/mock/f33-build-125824-39918/root/chroot_tmpdir/scmroot/rubygem-json
Cloning into '/var/lib/mock/f33-build-125824-39918/root/chroot_tmpdir/scmroot/rubygem-json'...
$ git reset --hard 6a26e3a3549f8064fcd51a23a3a8f16f91d1c2a4
HEAD is now at 6a26e3a - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild