The bug does not seem to be upstream, with today upstream git repository, it works:
% src/test/getdns_query @2001:4b98:dc2:43:216:3eff:fea9:41a -s www.bortzmeyer.org SYNC response: { "answer_type": GETDNS_NAMETYPE_DNS, "canonical_name": <bindata for www.bortzmeyer.org.>, ...