[Bug] Ember Data Model's errors field is not autotracked in 3.20

[andreyfel]

I'm updating Ember from 3.19 to 3.20 in my app and there is an issue which appeared after the update. I have a component which renders server errors for a certain field in the Ember Data model. In the component js it looks like this:

get errors() {
  const { model, field } = this.args;
  return model.errors.errorsFor(field).map(error => error.message);
}

Then I just render these messages in the template:

{{#each this.errors as |error|}}
  <li>{{error}}</li>
{{/each}}

If error comes after first render the component automatically re-rendered to show new errors.

It worked in Ember 3.19 but it doesn't work in Ember 3.20.

If I change it to computed by adding the following decorator it starts working in 3.20: @computed('args.model.errors.[]')

[andreyfel]

Note that it is ember-source version that makes the difference. If I use ember-source@3.19 + ember-data@3.20 it works.

[andreyfel]

Here is the link to the reproduction repo: https://github.com/andreyfel/ember-data-errors-autotracking-bug
This app has a component and integration test.
Test fails for ember-source 3.20.4, but passes for 3.20.0, 3.20.1, 3.20.2, 3.20.3.

[andreyfel]

I've tested the fix emberjs/data#7273 in my app and it fixed the issue with appearing of the new error. Unfortunately, removing the error is not working :(
I've updated my reproduction repo https://github.com/andreyfel/ember-data-errors-autotracking-bug to illustrate the issue.
@pzuraq do you have any idea?

[snewcomer]

@andreyfel I believe this issue can be closed now with 3.20.4 (or recently release 3.22.0)

[andreyfel]

@snewcomer Yes! Thanks!