diff --git a/classes/Notice.php b/classes/Notice.php
index ac4640534c..2d02a9a19f 100644
--- a/classes/Notice.php
+++ b/classes/Notice.php
@@ -944,6 +944,8 @@ class Notice extends Memcached_DataObject
                 $reply->profile_id = $user->id;
 
                 $id = $reply->insert();
+
+                self::blow('reply:stream:%d', $user->id);
             }
         }
 
diff --git a/plugins/OStatus/classes/Magicsig.php b/plugins/OStatus/classes/Magicsig.php
index d47dcf1434..30da63c364 100644
--- a/plugins/OStatus/classes/Magicsig.php
+++ b/plugins/OStatus/classes/Magicsig.php
@@ -50,7 +50,11 @@ class Magicsig extends Memcached_DataObject
     public /*static*/ function staticGet($k, $v=null)
     {
         $obj =  parent::staticGet(__CLASS__, $k, $v);
-        return Magicsig::fromString($obj->keypair);
+        if (!empty($obj)) {
+            return Magicsig::fromString($obj->keypair);
+        }
+
+        return $obj;
     }