in style/js/catalog/bloodhound.js [687:698]
function returnRemoteMatches(remoteMatches) {
var matchesWithBackfill = matches.slice(0);
_.each(remoteMatches, function(remoteMatch) {
var isDuplicate;
isDuplicate = _.some(matchesWithBackfill, function(match) {
return that.dupDetector(remoteMatch, match);
});
!isDuplicate && matchesWithBackfill.push(remoteMatch);
return matchesWithBackfill.length < that.limit;
});
cb && cb(that.sorter(matchesWithBackfill));
}