Ticket #7201: perm-share-empty-cache.diff

trac/perm.py

@@ -491 +491 @@
         self.env = env
         self.username = username or 'anonymous'
         self._resource = resource
-        self._cache = cache is not None and cache or {}
+        if cache is None:
+            cache = {}
+        self._cache = cache
 
     def _normalize_resource(self, realm_or_resource, id, version):
         if realm_or_resource: