lib/graphql/schema/introspection_system.rb in graphql-2.3.2 vs lib/graphql/schema/introspection_system.rb in graphql-2.3.5

@@ -23,13 +23,13 @@
           load_constant(:InputValueType),
           load_constant(:TypeKindEnum),
           load_constant(:DirectiveLocationEnum)
         ]
         @types = {}
-        @possible_types = {}
+        @possible_types = {}.tap(&:compare_by_identity)
         type_defns.each do |t|
           @types[t.graphql_name] = t
-          @possible_types[t.graphql_name] = [t]
+          @possible_types[t] = [t]
         end
         @entry_point_fields =
           if schema.disable_introspection_entry_points?
             {}
           else