Avatar ingest: pinned lookup answers both the single and the list form

ddiff --git a/server/avatars/ingest.js b/server/avatars/ingest.js
iindex 649fcba..7a5700b 100644
---- a/server/avatars/ingest.js
++++ b/server/avatars/ingest.js
@@@ -62,7 +62,9 @@ function fetchOnce(u, pinned, deadline) {
          const req = https.get({
              host: u.hostname, servername: u.hostname, port: u.port || 443, path: u.pathname + u.search, method: 'GET',
              headers: { 'User-Agent': 'OpenVibeMedia/1.0 (+https://openvibe.media; avatar fetch)', Accept: 'image/*' },
--            lookup: (_h, _o, cb) => cb(null, pinned.address, pinned.family),      // connect to the address we checked, nothing else
++            // Connect to the address we checked, nothing else. Newer Node asks for a list (options.all) when it races
++            // address families; older Node wants the single-address form.
++            lookup: (_h, o, cb) => ((o && o.all) ? cb(null, [{ address: pinned.address, family: pinned.family }]) : cb(null, pinned.address, pinned.family)),
              timeout: Math.max(1000, deadline - Date.now()),
          }, (res) => {
              const status = res.statusCode || 0;