lib/rbbt/tsv/accessor.rb in rbbt-util-5.14.15 vs lib/rbbt/tsv/accessor.rb in rbbt-util-5.14.16

@@ -242,10 +242,10 @@
         self[key, true].each_with_index do |v,i|
           new << (v << values[i])
         end
         self[key] == new
       else
-        self[key] = values.collect{|v| [v] }
+        self[key] = Array === values.first ? values.dup : values.collect{|v| [v] }
       end
     when :flat
       if self.include? key
         self[key] = (self[key] + values).uniq
       else