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--- a/Allura/allura/lib/security.py
+++ b/Allura/allura/lib/security.py
@@ -176,12 +176,12 @@
     @LazyProperty
     def users_that_reach(self):
         return [
-            r.user for r in self.roles_that_reach if r.user_id is not None ]
+            r.user for r in self.roles_that_reach if r.user ]
 
     @LazyProperty
     def userids_that_reach(self):
         return [
-            r.user_id for r in self.roles_that_reach if r.user_id is not None ]
+            r.user_id for r in self.roles_that_reach ]
 
     @LazyProperty
     def reaching_roles(self):