Horizon does not hide image "Visibility" field even with non-admin user

[Nobuto Murata]

Horizon has a "Visibility" field as public/private when uploading images.

According to the code, it looks like Horizon checks if the user has a privilege to publicize an image, then hide the form when it's non-privileged user (non-admin by default).

[openstack_dashboard/dashboards/project/images/images/forms.py]
        if not policy.check((("image", "publicize_image"),), request):
            self._hide_is_public()

However, it seems not working for me. I still see public/private button even with non-admin user and image upload fails by default because the default choice is public (bug 1699144).

I'm using Ocata right now and I didn't check the behavior in Pike, but forms.py has not been changed so much since Ocata.