normalized: false cause invalid redis FT.CREATE command

[UrielCh]

I'm trying Redis search / Redis OM for the first time.
I found a strange behavior In this nestJS project currently on branch Redis.

During my test I got the Error:
[ErrorReply: Invalid field type for field `UNF`]
With no stack and no mention to Redis.

After investigation, the error occurred when I call createIndex, if I set a normalized: false in my model.

In my case the faulty generated create index request was:

FT.CREATE 
  DroidUser:index 
  ON JSON 
  PREFIX 1 DroidUser: 
  SCHEMA
  $.createdAt AS createdAt NUMERIC NOINDEX
  $.updatedAt AS updatedAt NUMERIC NOINDEX
  $.email AS email TAG SEPARATOR | UNF
  $.hash AS hash TAG SEPARATOR | NOINDEX
  $.name AS name TAG SEPARATOR | NOINDEX
  $.role AS role TAG SEPARATOR | 
  $.devices[*] AS devices TAG SEPARATOR | 
  $.tokens[*] AS tokens TAG SEPARATOR | 

so:

• can an error occurring during the create index can be more verbose ?
• can you properly handle normalized: false?

In my case I want to set normalized to true, so my RedisOM test is still on track.