lib/tdiff/unordered.rb in tdiff-0.3.0 vs lib/tdiff/unordered.rb in tdiff-0.3.1

@@ -63,10 +63,10 @@
           changes << [i, '-', xi]
         end
       end
 
       y.each_with_index do |yj,j|
-        unless unchanged.has_key?(yj)
+        unless unchanged.has_value?(yj)
           changes << [j, '+', yj]
         end
       end
 
       # order the changes by index to match the behavior of `tdiff`