lib/briard/readers/datacite_reader.rb in briard-2.2.3 vs lib/briard/readers/datacite_reader.rb in briard-2.2.4

@@ -119,10 +119,10 @@
           elsif subject.is_a?(Hash)
             sum += hsh_to_fos(subject)
           end
 
           sum
-        end.uniq
+        end.uniq { |s| s["subject"] }
 
         dates = Array.wrap(meta.dig("dates", "date")).map do |r|
           if r.is_a?(Hash) && date = sanitize(r["__content__"]).presence
             if Date.edtf(date).present? || Briard::Utils::UNKNOWN_INFORMATION.key?(date)
               { "date" => date,