lib/relaton/cli/relaton_file.rb in relaton-cli-1.7.pre3 vs lib/relaton/cli/relaton_file.rb in relaton-cli-1.7.0

@@ -148,10 +148,10 @@
             mem << bibdata_instance(d, xml[:file])
           elsif %w[bibitem bibdata].include? doc&.root&.name
             mem << bibdata_instance(doc, xml[:file])
           else mem
           end
-        end
+        end.uniq &:id
       end
 
       def concatenate_and_write_to_files
         write_to_file(bibcollection.send(output_type))
       end