Strange behavior with an array of objects

[AmauryD]

VERSION

4.1.0

Test Case

Repo
The files

Steps to reproduce

[In the test case]

1. Input some text in the comments
2. add some comments and some text
3. try to rollback

[In any changeset]

1. Have some array with objects inside of your changeset
2. Change the content of some objects in the array
3. Try to rollback/trigger validation

Expected Behavior

The content of the object in the array also rollbacks.
Validation triggers properly for in-array object keys.

Actual Behavior

The content of the objects in the array is not roll-backed after modification.
Impossible to make validation works for properties of nested objects. (except when a new object is added/deleted to the main array, but its not real-time for the properties of these objects)

Maybe i'm doing it the wrong way, i never saw support for this kind of structure and validation in ember-changeset, so let me know if it's a bug or just me !

Quick overview of the test case:

   const validator = {
      title: [validatePresence(true)],
      content: [validatePresence(true)],
      comments: [
        (e) => {
          /**
           * Validates only when array is changed
           */
          console.log(e);
          return true;
        },
      ],
      // not working
      'comments.0.content': [
        (e) => {
          console.log(e);
          return true;
        },
      ],
    };
   ...
   Changeset({
    title: 'Article',
    comments: [
      {
        content: 'That was fun', <-- content does not validate when modified and does not rollback
      },
      {
        content: 'That was not fun',
      },
    ],
    lookupValidator(validator),
    validator
   })

[jgadbois]

I am trying to do something similar - I have a property

results = [{ value: 1}]

Trying to validate 'results.0.value': validatePresence(true)

It's returning valid even if value is empty.

[jgadbois]

Note this appears to be related to the lookupValidator function, because if I use a standard validation object for the map, but use my own validation function, then it works fine.