Django Admin doesn't render autocomplete field whith error color border properly.

[Rigoberto Villalta]

In Django Admin, if the validations of an autocomplete fields fails, the border of the input field isn't´n of the error color (#ba2121 by default).

Why? Because in that case the select html element is hidden.

You can test it int this repo ​https://github.com/Rigo-Villalta/django-autocomplete-error-not-visible.

Solution: I think the best solution is to add to the end of the file /static/admin/css/autocomplete.css the following rule:

.errors .select2-selection {
    border: 1px solid var(--error-fg);
}

Someone could think that add the selector to the base.css file could works, but for inheritance doesn't work.

I will push the pull request in a minutes, but I am not sure if is the best solution.