Shorthand function to check if notice has been repeated.

classes/Notice.php

@@ -2627,6 +2627,13 @@ class Notice extends Managed_DataObject
         return !empty($this->repeat_of);
     }
 
+    public function isRepeated()
+    {
+        $n = new Notice();
+        $n->repeat_of = $this->getID();
+        return $n->find() && $n->N > 0;
+    }
+
     /**
      * Get the list of hash tags saved with this notice.
      *