Issue with ViewSet permissions

[jzr-supove]

I've noticed an issue related with showing custom permission messages.

Lets say I have a FooPermission permission class:

class FooPermission(permissions.BasePermission):
    message = "Custom message"

    def has_permission(self, request, view):
        return False

and FooViewSet:

class FooViewSet(viewsets.ModelViewSet):
    queryset = Foo.objects.all()
    serializer_class = FooSerializer
    permission_classes = (FooPermission,)

I have Session and JWT authentication classes and AllowAny permission class enabled in my DRF settings:

REST_FRAMEWORK = {
    "DEFAULT_AUTHENTICATION_CLASSES": (
        "rest_framework.authentication.SessionAuthentication",
        "rest_framework_simplejwt.authentication.JWTAuthentication"
    ),
    "DEFAULT_PERMISSION_CLASSES": ("rest_framework.permissions.AllowAny",)
}

When I try to access /foo endpoint (list view), I get:

{"detail": "Authentication credentials were not provided."}

but I was supposed to get the message that I've defined in my permission class, no?

{"detail": "Custom message"}

I get that there is authentication class raising this error, but when I change the return value of FooPermission.has_permission method to True, it works okay and no authentication class is involved in the process and checking for authentication credentials.