Updating permissions does not work

[Ronil Rufo]

I couldn't find any solution online to this issue so I'm hoping you could help me out. So here's the scenario. I first created the permission below weeks ago. Back then, I wanted to display the list of companies only to admin users:
add_perm('mining.list_company', is_admin_level)

The above code worked perfectly. However, couple of days ago, we have made some changes and we want the list of companies to be available to all users. So I have this now:
add_perm('mining.list_company', is_authenticated)

However, when I go to the company list page using a regular user, I still get a permission denied error even though I have already changed the permission. I went into a little bit of digging and it looks like the add_perm method gets executed only ONCE, that's why the is_authenticated does not get recognized. I was able to confirm this because when I tried adding pdb debugging inside the predicate itself, it does not get executed and just proceeds to permission denied error.

Am I missing anything here? It seems I'm the only one having this issue. Below are the necessary codes:

predicates.py

from __future__ import unicode_literals, absolute_import

from rules import predicate


@predicate()
def is_authenticated(user):
    return user.is_authenticated()

@predicate()
def is_admin_level(user):
    return user.is_admin_level

rules.py

from __future__ import unicode_literals, absolute_import
from rules import add_perm
from .predicates import is_authenticated

add_perm('mining.list_company', is_authenticated)

views.py

class CompanyList(LoginRequiredMixin, PermissionMixin, ListView):
    logger = logging.getLogger(__name__)
    context_object_name = 'companies'
    permission_required = 'mining.list_company'
    template_name = 'mining/company/list.html'
    paginate_by = 10

Again, everything is working perfectly fine before. The error appeared when I changed is_admin_level to is_authenticated. I would really appreciate it if you could point me to the right direction here. Thanks in advance!

[Pablo Escodebar]

@RonilRufo: I'm just trying to understand your issue.

Do you want to update the permissions without restarting the server or the process providing your application?

[dfunckt]

Closing as it seems resolved given no answer. Please reopen if needed.