session: ignore duplicates for flash messages by default, this gives no benefits, explicitly request duplicates present instead

rhodecode/lib/helpers.py

@@ -660,7 +660,7 b' class Flash(object):'
                 })
         return json.dumps(payloads)
 
-    def __call__(self, message, category=None, ignore_duplicate=False,
+    def __call__(self, message, category=None, ignore_duplicate=True,
                  session=None, request=None):
 
         if not session: