handle sanity check for repeating enums correctly

ruby/ext/google/protobuf_c/storage.c

@@ -595,12 +595,20 @@ static void check_repeated_field_type(VALUE val, const upb_fielddef* field) {
     rb_raise(rb_eTypeError, "Repeated field array has wrong element type");
   }
 
-  if (self->field_type == UPB_TYPE_MESSAGE ||
-      self->field_type == UPB_TYPE_ENUM) {
+  if (self->field_type == UPB_TYPE_MESSAGE) { 
     if (self->field_type_class !=
         Descriptor_msgclass(get_def_obj(upb_fielddef_subdef(field)))) {
       rb_raise(rb_eTypeError,
-               "Repeated field array has wrong message/enum class");
+               "Repeated field array has wrong message class");
+    }
+  }
+
+
+  if (self->field_type == UPB_TYPE_ENUM) {
+    if (self->field_type_class !=
+        EnumDescriptor_enummodule(get_def_obj(upb_fielddef_subdef(field)))) {
+      rb_raise(rb_eTypeError,
+               "Repeated field array has wrong enum class");
     }
   }
 }