lib/datacite/mapping/geo_location_polygon.rb in datacite-mapping-0.4.1 vs lib/datacite/mapping/geo_location_polygon.rb in datacite-mapping-0.5.0

@@ -23,10 +23,10 @@
       def points=(value)
         @points = value || []
       end
 
       def <=>(other)
-        return nil unless other.class == self.class
+        return nil unless other.instance_of?(self.class)
 
         points <=> other.points
       end
 
       def hash