Fix visibility of non-public plans in section list

froide_govplan/auth.py

@@ -0,0 +1,14 @@
+from .models import GovernmentPlan
+
+
+def has_limited_access(user):
+    if not user.is_authenticated:
+        return True
+    return not user.has_perm("froide_govplan.add_governmentplan")
+
+
+def get_allowed_plans(request):
+    if not has_limited_access(request.user):
+        return GovernmentPlan.objects.all()
+    groups = request.user.groups.all()
+    return GovernmentPlan.objects.filter(group__in=groups).distinct()